{"title":"Collimation Tools for Telescopes","description":"\u003cp\u003e\u003cstrong\u003eTelescope collimation tools\u003c\/strong\u003e give you the ability to optimize your instrument’s optical performance by precisely aligning the mirrors. \u003cstrong\u003eCollimation\u003c\/strong\u003e is particularly important for mirror-based telescopes, where misalignment can reduce image sharpness and contrast.\u003c\/p\u003e\n\u003cp\u003eThese \u003ca href=\"https:\/\/istronomyplus.com\/collections\/optical-accessories\" target=\"_self\" title=\"\"\u003etelescope accessories \u003c\/a\u003eallow you to check and adjust the orientation of both primary and secondary mirrors to achieve a clear and detailed view of stars, planets, and deep-sky objects. Depending on the model, collimation can be done manually using simple instruments like a \u003ca href=\"https:\/\/istronomyplus.com\/collections\/chesire\" target=\"_self\" title=\"\"\u003eCheshire collimator\u003c\/a\u003e, or with more advanced tools, like a \u003ca href=\"https:\/\/istronomyplus.com\/collections\/collimating-laser\" target=\"_self\" title=\"\"\u003elaser collimator\u003c\/a\u003e that incorporate lasers, or assisted vision for greater precision like an \u003ca href=\"https:\/\/istronomyplus.com\/collections\/electronic-collimator\" target=\"_self\" title=\"\"\u003eelectronic collimator\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCollimation tools\u003c\/strong\u003e are suitable for both beginner astronomers and experienced users who want to keep their telescopes in optimal condition. Proper collimation improves visual comfort, image quality, and makes astrophotography easier by reducing optical aberrations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoosing collimation tools from Astronomy Plus\u003c\/strong\u003e allows you to keep your telescope perfectly aligned, so you can make the most of every observing session and get the best performance from your instrument, whether for visual exploration or capturing images of the night sky.\u003c\/p\u003e","products":[{"product_id":"astrozap-artificial-star-az-1600","title":"Astrozap Artificial Star (AZ-1600)","description":"\u003ch2\u003eAstrozap Artificial Star\u003c\/h2\u003e\n\u003cp\u003eThe artificial star is designed to provide a steady, stable reference for star collimation to be used in lieu of an actual star. This device will allow collimation without the worry of star drift or seeing conditions. This very bright, small point source of light will provide a consistent brightness and produce beautiful diffraction rings when de-focused in any eyepiece.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThis new and improved design features a brighter 18,000mcd ultra white LED focused on a 100 micron precision laser drilled stainless steel aperture.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe Importance of Proper Collimation\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eCollimation, in its simplest terms, is the alignment of the mirrors or other optical surfaces in the telescope. A telescope that is out of collimation will typically not perform as well as a lesser telescope (25-50% less aperture) that is in collimation. If you put the extra money into a larger telescope, you are not reaping any benefits of it unless the scope is collimated. Also, no telescope will allow you to reach a crisp focus at the high power end unless collimation is perfect. It is well worth the time and effort.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe picture below (Fig 1) represents an optical system that is in perfect collimation. The rings themselves make collimation easy to perform. Note the complete lack of any atmospheric disturbance. This photo was taken with an eight inch SCT using a modified webcam at prime focus. Star distance was approximately 50 feet from the telescope. This picture was taken on a 95 degree summer day just before dusk! (Fig 2) is an example of an optical system that is out of collimation.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe star can be mounted on a table, or attached to a standard photo tripod using the ¼-20 adapter provided on the bottom of the unit.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThese can be used at star parties to provide a star for everyone. It never moves, so there are no tracking or centering issues to worry about. It is unaffected by atmospheric disturbances so you can get an accurate collimation under any seeing conditions. \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe placement of the star depends on the telescope. For an 8\" SCT we recommend approximately 100 feet. The further away from the scope, the better until you start loosing contrast in the eyepiece. Indoor use is a possibility although we recommend collimation with the scope in position.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe procedure for collimating your particular telescope should be outlined in its manual. Please read the instructions there first. It will tell you the location of the collimation screws and any cautionary notes concerning collimation adjustments.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eFig.1. Perfect Collimation\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/4094\/1100\/files\/Artificial_Star_Figure_1_480x480.jpg?v=1642434961\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/4094\/1100\/files\/Artificial_Star_Figure_1_480x480.jpg?v=1642434961\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003eFig.2. Out of Collimation\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/4094\/1100\/files\/Artificial_Star_Figure_2_480x480.jpg?v=1642434972\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/4094\/1100\/files\/Artificial_Star_Figure_2_480x480.jpg?v=1642434972\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAstrozap Artificial Star\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLimited One Year Warranty\u003c\/p\u003e","brand":"Astrozap","offers":[{"title":"Default Title","offer_id":43133228450021,"sku":"AZ-1600","price":149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astrozap-artificial-star-az-1600-astronomy-plus_67f0d4b4-23dc-4421-84f8-39c4de4a1827.jpg?v=1690484258"},{"product_id":"hotech-1-25-sca-dot-laser-collimator-sca-1-25d","title":"HoTech 1.25\" SCA Dot Laser Collimator (SCA-1.25D)","description":"\u003ch1\u003eHoTech 1.25\" SCA Dot Laser Collimator\u003c\/h1\u003e\n\u003cp\u003eThe HoTech 1.25\" SCA Dot Laser Collimator separates itself from all other laser collimators with its innovative self-centering adapter technology (SCA). This mechanism allows precise and \u003cb\u003eREPEATABLE \u003c\/b\u003einstallation in all brands of 1.25\" and 2\" telescope focusers thus provides accurate collimation. All laser collimators in the current market have one fundamental problem, slop in the adapting mechanism between the laser collimator and the telescope focuser.This problem is clearly recognized and often discussed among astronomers but so far there has been no definite solution in the market. No matter how tightly the tolerances machined on the laser collimator or the focuser, a small gap is required to allow installation of the laser collimator. Once the laser collimator is inserted, the required gap becomes a problem. A laser collimator is secured with one or more thumbscrews or unified compression ring. Both methods introduce very critical issues, namely inconsistant adaption from \u003cb\u003e\u003ci\u003eoff-axis\u003c\/i\u003e\u003c\/b\u003e (axial) and \u003cb\u003e\u003ci\u003enone parallel-axis\u003c\/i\u003e\u003c\/b\u003e installment that instantly destroys the precision of your collimation instrument along the entire optical axis. \u003cb\u003eOur Self-Centering Adapter cleverly eliminates the focuser slop by linearly compressing the built-in rubber rings.\u003c\/b\u003e By doing this, the diameter of the rings expands to compensate the gap.Because all rings evenly expand radially in diameter from the compression, this automatically centers the laser collimator in the focuser draw tube. And most importantly, our SCA laser collimator can be tightly installed in the focuser for a repeatable installation to provide an accurate collimation. In summary, \u003cb\u003eour SCA adapter serves three critical functions\u003c\/b\u003e. First, its expansion rings accommodate almost all focuser's manufacturing tolerances. Second, it automatically centers the adapting laser in the focuser. Third, it provides at least two evenly distributed circular contacts on the focuser's inner tube surface preventing the adapting laser from pivoting and parallel to the focuser.Once the slop factor is taken away, you can quickly collimate your telescope in confidence to achieve perfect collimation every time.\u003c\/p\u003e\n\u003cp\u003eSCA Eliminates Drawtube Slop\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAll drawtube have manufacturing tolerances.And it requires larger diameter to accept various eyepieces and adapters.When a standard collimator is inserted, the gap between the drawtube and the inserting device became a slop problem.The rubber rings in the SCA expand radially according to users own adjustment to fill the gaps.This makes your collimator seats firmly in your drawtube becoming part of your telescope for a secure and \u003cb\u003erepeatable\u003c\/b\u003e installation.\u003c\/p\u003e\n\u003ch4\u003eSCA Keeps Laser Perfectly Parallel to the Focuser\u003c\/h4\u003e\n\u003cp\u003eThe patented multiple expanding o-rings design provides solid 360 degress even grip to the inner focuser surface keeping the adapting laser perfectly parallel to the focuser tube elimating any possible tip or tilt error from the conventional thumbscrew locking mechanism.\u003c\/p\u003e\n\u003ch4\u003eSCA Eliminates unstable locking from thumbscrew or unified compression ring\u003c\/h4\u003e\n\u003cp\u003eThe optical axis is shifted when the inserting device is locked in by thumbscrew.In some cases, some poorly made unified compression ring can cause unstable tilt when locking in the drawtube due to loose tolerances between the compression ring, inner groove, and the uneven tip of the locking thumbscrew in a drawtube.The SCA adapts the collimator itself without using the thumbscrew or the unified compression ring.\u003c\/p\u003e\n\u003ch4\u003eSCA Accepts the Imperfection of a Drawtube\u003c\/h4\u003e\n\u003cp\u003eSmall imperfection inside the drawtube like dents, scratches, and uneven burrs, the rubber rings compensates the errors and faithfully centers the collimator in the tube.In addition, even if the drawtube is slightly deformed in diameter, egg-shaped, the rubber rings in the SCA will compensate the differences and faithfully centers the collimator. A metal collet design will not be able to transform itself to the deformed shape to compensate the imperfection of a drawtube for a sturdy adaption.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMore SCA Laser Collimator Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eLaser Engraved 45º Targeting Faceplate\u003c\/h4\u003e\n\u003cp\u003eThe targeting faceplate displays the returning laser spot with a clear visual reference during adjustment. That allows you to align your primary mirror from the rear of the telescope and eliminates traveling to the front of your scope repeatedly during collimation. Collimating without the targeting faceplate, you will not be able to adjust the primary mirror in real time referencing the laser dot.In other words, you often get lost on which adjustment screws you used due to traveling back and forth for referencing the direction you have adjusted.This results in considerable time to complete the collimation and defeats the purpose of quick and easy laser collimation. HoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra! HoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra! In addition, our faceplate viewer’s pattern is laser engraved to ensure a long lasting sharp targeting grid for best visual effects. Unlike other collimators, the target is not a sticker that will peel, or paint that can rub or chip off. We understand that you are paying for a precision instrument that is supposed to be well made.\u003c\/p\u003e\n\u003ch4\u003eFinest Projecting Laser Dot\u003c\/h4\u003e\n\u003cp\u003eKeeping the laser dot to the finest point is the key to precision collimation. But when you look closely at the laser dot from brand to brand, most laser dots appear large, not really a fine point as you imagined.This means there is guess work involved when you try to center the dot; not just centering the laser dot to the center of the faceplate, but also centering the center of the dot itself.This does not make any sense when you are trying to take the advantage of the collimated laser beam's characteristic \"which has a low beam divergence, so that the beam radius does not undergo significant changes within moderate propagation distances.\" In other words, the laser beam size within the collimation distance (laser collimator to the primary mirror and back to the faceplate) should remain a constant fine point. As you know, most laser collimator brands are not really laser manufacturers.They install an off-the-shelf laser module or pointer and align the laser in a tube without REALLY considering the user’s application, namely the operating distance for a laser beam size.HoTech has been designing and building laser modules and systems for over 10 years for various professional industries.We know exactly how a laser should work.We limit our laser beam to the finest size in the correct operating distance for optimal effect.Our understanding and experiences with the laser design permit you to have an effective and precision collimation.\u003c\/p\u003e\n\u003ch4\u003eProprietary Crosshair Laser Collimator Available\u003c\/h4\u003e\n\u003cp\u003eWith our proprietary laser crosshair, user can zero-in the laser with ease during the final collimation on the secondary and the primary mirror. The crosshair model still exibits a precision laser center dot, but with a touch of four extended laser lines from the center dot. The extension lines (crosshair) of the laser dot is the most intuitive way to guide the laser pointing for an accurate adjustment. During the secondary mirror collimation, a single dot laser projecting on the approximate center of the pre-loaded donut is difficult to identify if the laser dot is exactly on the center.The crosshair laser can easily help user to adjust the secondary mirror to point the laser on the exact center with the help of the crosshair line. During the final primary mirror collimation, the returning laser dot often hides into the laser exiting hole preventing user to identify if the returning laser is at exact center of the hole. Again, the crosshair will visually guide the user to center the laser dot with ease even when the center laser dot disappears into the exiting hole.It is a very effective and essential feature to the SCA Laser Collimator in obtaining at even higher degree of accuracy with ease.\u003c\/p\u003e\n\u003ch4\u003eHigh Accuracy Laser Alignment\u003c\/h4\u003e\n\u003cp\u003eOur laser collimator is well centered and aligned which are critical factors for an accurate collimation.But you will be surprised that many laser collimators in the market fail in this regard.The reason is in the design and understanding of the product itself. We considered all aspect of parameters in our design.Parameters like the alignment mechanism, mechanical and optical structure of the laser itself, and more are taken as part of our design.For instance, some laser collimators actually install an off-the-shelf laser pointer in the casing.It is very cost effective (for seller), but it inherits numerous problems.In many cases, the laser pointer might not install perfectly centered in the casing due to pointer size variations and the added alignment mechanism.So the laser itself is not positioned on the true alignment point and optical axis. As the result, the laser can never be center-aligned in the enclosure.It is possible to align the laser beam parallel to the optical path but always with an offset along the optical axis.This means the laser beam is off no matter how you center adapt the laser collimator to the focuser.\u003c\/p\u003e\n\u003ch4\u003eLight Weight Design and All Aluminum Body Machined with High Precision CNC\u003c\/h4\u003e\n\u003cp\u003eMany laser collimator manufacturers give users the wrong impression, “big and heavy means rugged and stable.” Instead, HoTech engineers successfully cut the unnecessary weight on the laser collimator because we understand that additional weight on a telescope (especially open structure Newtonians) will create imbalance and structure sagging.In addition, the heavier the device is, the more inertia it will have during an impact from an accidental drop.In such an accident, the inertia force can cause more damage to the internal alignment mechanism because there is more energy required to dissipate from the impact.Therefore, the lightweight design on our laser collimator makes you gain reliable precision collimation.And of course our laser collimator uses aero-space grade lightweight aluminum material and CNC machined with the tightest tolerances, then sand blasted and anodized to protect from harsh environment. Nothing has been sacrificed while you get a long lasting state-of-the-art collimation instrument.\u003c\/p\u003e\n\u003ch4\u003eLong Lasting Battery Life\u003c\/h4\u003e\n\u003cp\u003eBy using the CR123, 3V battery as our laser power source, our laser collimator has over 65 hours of continuous use battery life time. The included CR123, 3V lithium battery operates well under a typical cold night and it has a 10 years shelf life. This is a great advantage that you don't have to worry about changing the tiny hard to find cell batteries frequently in the dark like other collimators.\u003c\/p\u003e\n\u003ch4\u003eDiffraction Grating Pattern Lens on our SCA Laser Collimator\u003c\/h4\u003e\n\u003cp\u003eSince our SCA Laser Collimator is already accurate with the SCA technology, fine laser dot, and the built-in 45 degrees faceplate, there is no need to use the DFG pattern to align the primary mirror of a Newtonian telescope.The purpose of using DFG pattern is to gross alignment the primary mirror.The user aligns the primary mirror by referencing the shadow of the secondary in the projected DFG pattern on a wall, and user counts the DFG dots around the shadow to center in the shadow.This method cannot achieve accurate alignment because the gap between each dot can make a big alignment difference.At the final alignment stage, the user must bring the laser dot back to the laser exit (the center of the 45 degrees faceplate).Our built-in 45 degrees faceplate allows you to align your primary mirror from the rear of the telescope eliminating traveling to the front of your scope repeatedly during collimation like other collimators.Therefore, there is no need to use DFG lens in conjunction with our SCA Laser Collimator.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eModel:1.25″ SCA Crosshair Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFocuser Size: 1.25″\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Wavelength: 650nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Output Power: Class II, \u0026lt; 1mW\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOperating Voltage: 3V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery: One 3V Lithium Battery (included), 10 yrs shelf life, 40+ Operating Hours\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWeight: 3.4 oz. w\/ battery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDimension: 1.2″\/30mm dia. x 5″\/127mm (L)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eConstruction: All Areo-Space Grade Anodize Aluminum Case\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRecommend Use: Ideal for Newtonian Style Telescope\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e1.25″ Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eManual\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Instructions.pdf?v=1668109379\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Manual-for-SCT.pdf?v=1668109410\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Manual for SCT\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-Star-Collimation-Instructions.pdf?v=1668109541\" target=\"_blank\"\u003eHoTech Star Collimation Instructions\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43133240180965,"sku":"HOT-SCA-1.25D","price":156.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-1-25-sca-dot-laser-collimator-sca-1-25d-astronomy-plus_652314bb-fe2f-4ccc-8f30-f2e980d05baf.png?v=1690484336"},{"product_id":"hotech-1-25-sca-crosshair-laser-collimator-sca-1-25c","title":"HoTech 1.25\" SCA Crosshair Laser Collimator (SCA-1.25C)","description":"\u003ch1\u003eHoTech 1.25\" SCA Crosshair Laser Collimator\u003c\/h1\u003e\n\u003cp\u003eThe HoTech 1.25″ SCA Crosshair Laser Collimator separates itself from all other laser collimators with its innovative self-centering adapter technology (SCA). This mechanism allows precise and\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eREPEATABLE\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003einstallation in all brands of 1.25″ and 2″ telescope focusers thus provides accurate collimation. All laser collimators in the current market have one fundamental problem, slop in the adapting mechanism between the laser collimator and the telescope focuser.This problem is clearly recognized and often discussed among astronomers but so far there has been no definite solution in the market.\u003c\/p\u003e\n\u003cp\u003eNo matter how tightly the tolerances machined on the laser collimator or the focuser, a small gap is required to allow installation of the laser collimator. Once the laser collimator is inserted, the required gap becomes a problem. A laser collimator is secured with one or more thumbscrews or unified compression ring. Both methods introduce very critical issues, namely inconsistant adaption from\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e\u003ci\u003eoff-axis\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e(axial) and\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e\u003ci\u003enone parallel-axis\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003einstallment that instantly destroys the precision of your collimation instrument along the entire optical axis.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOur Self-Centering Adapter cleverly eliminates the focuser slop by linearly compressing the built-in rubber rings.\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eBy doing this, the diameter of the rings expands to compensate the gap.Because all rings evenly expand radially in diameter from the compression, this automatically centers the laser collimator in the focuser draw tube. And most importantly, our SCA laser collimator can be tightly installed in the focuser for a repeatable installation to provide an accurate collimation.\u003c\/p\u003e\n\u003cp\u003eIn summary,\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eour SCA adapter serves three critical functions\u003c\/b\u003e. First, its expansion rings accommodate almost all focuser’s manufacturing tolerances. Second, it automatically centers the adapting laser in the focuser. Third, it provides at least two evenly distributed circular contacts on the focuser’s inner tube surface preventing the adapting laser from pivoting and parallel to the focuser.Once the slop factor is taken away, you can quickly collimate your telescope in confidence to achieve perfect collimation every time.\u003c\/p\u003e\n\u003cp\u003eProblem Solved with SCA Technology\u003cb\u003e\u003ci\u003e\u003cbr\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch4\u003eSCA Eliminates Drawtube Slop\u003c\/h4\u003e\n\u003cp\u003eAll drawtube have manufacturing tolerances.And it requires larger diameter to accept various eyepieces and adapters.When a standard collimator is inserted, the gap between the drawtube and the inserting device became a slop problem.The rubber rings in the SCA expand radially according to users own adjustment to fill the gaps.This makes your collimator seats firmly in your drawtube becoming part of your telescope for a secure and\u003cspan\u003e \u003c\/span\u003e\u003cb\u003erepeatable\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003einstallation.\u003c\/p\u003e\n\u003ch4\u003eSCA Keeps Laser Perfectly Parallel to the Focuser\u003c\/h4\u003e\n\u003cp\u003eThe patented multiple expanding o-rings design provides solid 360 degress even grip to the inner focuser surface keeping the adapting laser perfectly parallel to the focuser tube elimating any possible tip or tilt error from the conventional thumbscrew locking mechanism.\u003c\/p\u003e\n\u003ch4\u003eSCA Eliminates unstable locking from thumbscrew or unified compression ring\u003c\/h4\u003e\n\u003cp\u003eThe optical axis is shifted when the inserting device is locked in by thumbscrew.In some cases, some poorly made unified compression ring can cause unstable tilt when locking in the drawtube due to loose tolerances between the compression ring, inner groove, and the uneven tip of the locking thumbscrew in a drawtube.The SCA adapts the collimator itself without using the thumbscrew or the unified compression ring.\u003c\/p\u003e\n\u003ch4\u003eSCA Accepts the Imperfection of a Drawtube\u003c\/h4\u003e\n\u003cp\u003eSmall imperfection inside the drawtube like dents, scratches, and uneven burrs, the rubber rings compensates the errors and faithfully centers the collimator in the tube.In addition, even if the drawtube is slightly deformed in diameter, egg-shaped, the rubber rings in the SCA will compensate the differences and faithfully centers the collimator. A metal collet design will not be able to transform itself to the deformed shape to compensate the imperfection of a drawtube for a sturdy adaption.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMore SCA Laser Collimator Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLaser Engraved 45º Targeting Faceplate\u003c\/strong\u003e\u003cimg style=\"float: none;\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe targeting faceplate displays the returning laser spot with a clear visual reference during adjustment. That allows you to align your primary mirror from the rear of the telescope and eliminates traveling to the front of your scope repeatedly during collimation.\u003c\/p\u003e\n\u003cp\u003eCollimating without the targeting faceplate, you will not be able to adjust the primary mirror in real time referencing the laser dot.In other words, you often get lost on which adjustment screws you used due to traveling back and forth for referencing the direction you have adjusted.This results in considerable time to complete the collimation and defeats the purpose of quick and easy laser collimation.\u003c\/p\u003e\n\u003cp\u003eHoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra!\u003c\/p\u003e\n\u003cp\u003eHoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra!\u003c\/p\u003e\n\u003cp\u003eIn addition, our faceplate viewer’s pattern is laser engraved to ensure a long lasting sharp targeting grid for best visual effects. Unlike other collimators, the target is not a sticker that will peel, or paint that can rub or chip off. We understand that you are paying for a precision instrument that is supposed to be well made.\u003c\/p\u003e\n\u003ch4\u003eFinest Projecting Laser Dot\u003c\/h4\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eKeeping the laser dot to the finest point is the key to precision collimation. But when you look closely at the laser dot from brand to brand, most laser dots appear large, not really a fine point as you imagined.This means there is guess work involved when you try to center the dot; not just centering the laser dot to the center of the faceplate, but also centering the center of the dot itself.This does not make any sense when you are trying to take the advantage of the collimated laser beam’s characteristic “which has a low beam divergence, so that the beam radius does not undergo significant changes within moderate propagation distances.” In other words, the laser beam size within the collimation distance (laser collimator to the primary mirror and back to the faceplate) should remain a constant fine point. As you know, most laser collimator brands are not really laser manufacturers.They install an off-the-shelf laser module or pointer and align the laser in a tube without REALLY considering the user’s application, namely the operating distance for a laser beam size.HoTech has been designing and building laser modules and systems for over 10 years for various professional industries.We know exactly how a laser should work.We limit our laser beam to the finest size in the correct operating distance for optimal effect.Our understanding and experiences with the laser design permit you to have an effective and precision collimation.\u003c\/p\u003e\n\u003ch4\u003eProprietary Crosshair Laser Collimator Available\u003c\/h4\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eWith our proprietary laser crosshair, user can zero-in the laser with ease during the final collimation on the secondary and the primary mirror. The crosshair model still exibits a precision laser center dot, but with a touch of four extended laser lines from the center dot. The extension lines (crosshair) of the laser dot is the most intuitive way to guide the laser pointing for an accurate adjustment.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eDuring the secondary mirror collimation, a single dot laser projecting on the approximate center of the pre-loaded donut is difficult to identify if the laser dot is exactly on the center.The crosshair laser can easily help user to adjust the secondary mirror to point the laser on the exact center with the help of the crosshair line. During the final primary mirror collimation, the returning laser dot often hides into the laser exiting hole preventing user to identify if the returning laser is at exact center of the hole. Again, the crosshair will visually guide the user to center the laser dot with ease even when the center laser dot disappears into the exit\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eing hole.It is a very effective and essential feature to the SCA Laser Collimator in obtaining at even higher degree of accuracy with ease.\u003c\/p\u003e\n\u003ch4\u003eHigh Accuracy Laser Alignment\u003c\/h4\u003e\n\u003cp\u003eOur laser collimator is well centered and aligned which are critical factors for an accurate collimation.But you will be surprised that many laser collimators in the market fail in this regard.The reason is in the design and understanding of the product itself.\u003c\/p\u003e\n\u003cp\u003eWe considered all aspect of parameters in our design.Parameters like the alignment mechanism, mechanical and optical structure of the laser itself, and more are taken as part of our design.For instance, some laser collimators actually install an off-the-shelf laser pointer in the casing.It is very cost effective (for seller), but it inherits numerous problems.In many cases, the laser pointer might not install perfectly centered in the casing due to pointer size variations and the added alignment mechanism.So the laser itself is not positioned on the true alignment point and optical axis. As the result, the laser can never be center-aligned in the enclosure.It is possible to align the laser beam parallel to the optical path but always with an offset along the optical axis.This means the laser beam is off no matter how you center adapt the laser collimator to the focuser.\u003c\/p\u003e\n\u003ch4\u003eLight Weight Design and All Aluminum Body Machined with High Precision CNC\u003c\/h4\u003e\n\u003cp\u003eMany laser collimator manufacturers give users the wrong impression, “big and heavy means rugged and stable.” Instead, HoTech engineers successfully cut the unnecessary weight on the laser collimator because we understand that additional weight on a telescope (especially open structure Newtonians) will create imbalance and structure sagging.In addition, the heavier the device is, the more inertia it will have during an impact from an accidental drop.In such an accident, the inertia force can cause more damage to the internal alignment mechanism because there is more energy required to dissipate from the impact.Therefore, the lightweight design on our laser collimator makes you gain reliable precision collimation.And of course our laser collimator uses aero-space grade lightweight aluminum material and CNC machined with the tightest tolerances, then sand blasted and anodized to protect from harsh environment. Nothing has been sacrificed while you get a long lasting state-of-the-art collimation instrument.\u003c\/p\u003e\n\u003ch4\u003eLong Lasting Battery Life\u003c\/h4\u003e\n\u003cp\u003eBy using the CR123, 3V battery as our laser power source, our laser collimator has over 65 hours of continuous use battery life time. The included CR123, 3V lithium battery operates well under a typical cold night and it has a 10 years shelf life. This is a great advantage that you don’t have to worry about changing the tiny hard to find cell batteries frequently in the dark like other collimators.\u003c\/p\u003e\n\u003ch4\u003eDiffraction Grating Pattern Lens on our SCA Laser Collimator\u003c\/h4\u003e\n\u003cp\u003eSince our SCA Laser Collimator is already accurate with the SCA technology, fine laser dot, and the built-in 45 degrees faceplate, there is no need to use the DFG pattern to align the primary mirror of a Newtonian telescope.The purpose of using DFG pattern is to gross alignment the primary mirror.The user aligns the primary mirror by referencing the shadow of the secondary in the projected DFG pattern on a wall, and user counts the DFG dots around the shadow to center in the shadow.This method cannot achieve accurate alignment because the gap between each dot can make a big alignment difference.At the final alignment stage, the user must bring the laser dot back to the laser exit (the center of the 45 degrees faceplate).Our built-in 45 degrees faceplate allows you to align your primary mirror from the rear of the telescope eliminating traveling to the front of your scope repeatedly during collimation like other collimators.Therefore, there is no need to use DFG lens in conjunction with our SCA Laser Collimator.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eModel:1.25″ SCA Crosshair Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFocuser Size: 1.25″\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Wavelength: 650nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Output Power: Class II, \u0026lt; 1mW\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOperating Voltage: 3V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery: One 3V Lithium Battery (included), 10 yrs shelf life, 40+ Operating Hours\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWeight: 3.4 oz. w\/ battery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDimension: 1.2″\/30mm dia. x 5″\/127mm (L)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eConstruction: All Areo-Space Grade Anodize Aluminum Case\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRecommend Use: Ideal for Newtonian Style Telescope\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e1.25″ Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eManual\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Instructions.pdf?v=1668109379\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Manual-for-SCT.pdf?v=1668109410\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Manual for SCT\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-Star-Collimation-Instructions.pdf?v=1668109541\" target=\"_blank\"\u003eHoTech Star Collimation Instructions\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43125731393765,"sku":"HOT-SCA-1.25C","price":192.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-1-25-sca-crosshair-laser-collimator-sca-1-25c-astronomy-plus_d037a70e-fbb8-42e0-ad52-9d2b6e1f6a84.png?v=1690484336"},{"product_id":"hotech-2-sca-dot-laser-collimator-sca-2d","title":"HoTech 2\" SCA Dot Laser Collimator (SCA-2D)","description":"\u003ch2\u003eHoTech 2\" SCA Dot Laser Collimator\u003c\/h2\u003e\n\u003cp\u003eThe HoTech 2\" SCA Dot Laser Collimator separates itself from all other laser collimators with its innovative self-centering adapter technology (SCA). This mechanism allows precise and \u003cb\u003eREPEATABLE \u003c\/b\u003einstallation in all brands of 1.25\" and 2\" telescope focusers thus provides accurate collimation. All laser collimators in the current market have one fundamental problem, slop in the adapting mechanism between the laser collimator and the telescope focuser.This problem is clearly recognized and often discussed among astronomers but so far there has been no definite solution in the market. No matter how tightly the tolerances machined on the laser collimator or the focuser, a small gap is required to allow installation of the laser collimator. Once the laser collimator is inserted, the required gap becomes a problem. A laser collimator is secured with one or more thumbscrews or unified compression ring. Both methods introduce very critical issues, namely inconsistant adaption from \u003cb\u003e\u003ci\u003eoff-axis\u003c\/i\u003e\u003c\/b\u003e (axial) and \u003cb\u003e\u003ci\u003enone parallel-axis\u003c\/i\u003e\u003c\/b\u003e installment that instantly destroys the precision of your collimation instrument along the entire optical axis. \u003cb\u003eOur Self-Centering Adapter cleverly eliminates the focuser slop by linearly compressing the built-in rubber rings.\u003c\/b\u003e By doing this, the diameter of the rings expands to compensate the gap.Because all rings evenly expand radially in diameter from the compression, this automatically centers the laser collimator in the focuser draw tube. And most importantly, our SCA laser collimator can be tightly installed in the focuser for a repeatable installation to provide an accurate collimation. In summary, \u003cb\u003eour SCA adapter serves three critical functions\u003c\/b\u003e. First, its expansion rings accommodate almost all focuser's manufacturing tolerances. Second, it automatically centers the adapting laser in the focuser. Third, it provides at least two evenly distributed circular contacts on the focuser's inner tube surface preventing the adapting laser from pivoting and parallel to the focuser.Once the slop factor is taken away, you can quickly collimate your telescope in confidence to achieve perfect collimation every time. \u003c\/p\u003e\n\u003ch4\u003eSCA Eliminates Drawtube Slop\u003c\/h4\u003e\n\u003cp\u003eAll drawtube have manufacturing tolerances.And it requires larger diameter to accept various eyepieces and adapters.When a standard collimator is inserted, the gap between the drawtube and the inserting device became a slop problem.The rubber rings in the SCA expand radially according to users own adjustment to fill the gaps.This makes your collimator seats firmly in your drawtube becoming part of your telescope for a secure and \u003cb\u003erepeatable\u003c\/b\u003e installation.\u003c\/p\u003e\n\u003ch4\u003eSCA Keeps Laser Perfectly Parallel to the Focuser\u003c\/h4\u003e\n\u003cp\u003eThe patented multiple expanding o-rings design provides solid 360 degress even grip to the inner focuser surface keeping the adapting laser perfectly parallel to the focuser tube elimating any possible tip or tilt error from the conventional thumbscrew locking mechanism.\u003c\/p\u003e\n\u003ch4\u003eSCA Eliminates unstable locking from thumbscrew or unified compression ring\u003c\/h4\u003e\n\u003cp\u003eThe optical axis is shifted when the inserting device is locked in by thumbscrew.In some cases, some poorly made unified compression ring can cause unstable tilt when locking in the drawtube due to loose tolerances between the compression ring, inner groove, and the uneven tip of the locking thumbscrew in a drawtube.The SCA adapts the collimator itself without using the thumbscrew or the unified compression ring.\u003c\/p\u003e\n\u003ch4\u003eSCA Accepts the Imperfection of a Drawtube\u003c\/h4\u003e\n\u003cp\u003eSmall imperfection inside the drawtube like dents, scratches, and uneven burrs, the rubber rings compensates the errors and faithfully centers the collimator in the tube.In addition, even if the drawtube is slightly deformed in diameter, egg-shaped, the rubber rings in the SCA will compensate the differences and faithfully centers the collimator. A metal collet design will not be able to transform itself to the deformed shape to compensate the imperfection of a drawtube for a sturdy adaption.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMore SCA Laser Collimator Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eLaser Engraved 45º Targeting Faceplate\u003c\/h4\u003e\n\u003cp\u003eThe targeting faceplate displays the returning laser spot with a clear visual reference during adjustment. That allows you to align your primary mirror from the rear of the telescope and eliminates traveling to the front of your scope repeatedly during collimation. Collimating without the targeting faceplate, you will not be able to adjust the primary mirror in real time referencing the laser dot.In other words, you often get lost on which adjustment screws you used due to traveling back and forth for referencing the direction you have adjusted.This results in considerable time to complete the collimation and defeats the purpose of quick and easy laser collimation. HoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra! HoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra! In addition, our faceplate viewer’s pattern is laser engraved to ensure a long lasting sharp targeting grid for best visual effects. Unlike other collimators, the target is not a sticker that will peel, or paint that can rub or chip off. We understand that you are paying for a precision instrument that is supposed to be well made.\u003c\/p\u003e\n\u003ch4\u003eFinest Projecting Laser Dot\u003c\/h4\u003e\n\u003cp\u003eKeeping the laser dot to the finest point is the key to precision collimation. But when you look closely at the laser dot from brand to brand, most laser dots appear large, not really a fine point as you imagined.This means there is guess work involved when you try to center the dot; not just centering the laser dot to the center of the faceplate, but also centering the center of the dot itself.This does not make any sense when you are trying to take the advantage of the collimated laser beam's characteristic \"which has a low beam divergence, so that the beam radius does not undergo significant changes within moderate propagation distances.\" In other words, the laser beam size within the collimation distance (laser collimator to the primary mirror and back to the faceplate) should remain a constant fine point. As you know, most laser collimator brands are not really laser manufacturers.They install an off-the-shelf laser module or pointer and align the laser in a tube without REALLY considering the user’s application, namely the operating distance for a laser beam size.HoTech has been designing and building laser modules and systems for over 10 years for various professional industries.We know exactly how a laser should work.We limit our laser beam to the finest size in the correct operating distance for optimal effect.Our understanding and experiences with the laser design permit you to have an effective and precision collimation.\u003c\/p\u003e\n\u003ch4\u003eProprietary Crosshair Laser Collimator Available\u003c\/h4\u003e\n\u003cp\u003eWith our proprietary laser crosshair, user can zero-in the laser with ease during the final collimation on the secondary and the primary mirror. The crosshair model still exibits a precision laser center dot, but with a touch of four extended laser lines from the center dot. The extension lines (crosshair) of the laser dot is the most intuitive way to guide the laser pointing for an accurate adjustment. During the secondary mirror collimation, a single dot laser projecting on the approximate center of the pre-loaded donut is difficult to identify if the laser dot is exactly on the center.The crosshair laser can easily help user to adjust the secondary mirror to point the laser on the exact center with the help of the crosshair line. During the final primary mirror collimation, the returning laser dot often hides into the laser exiting hole preventing user to identify if the returning laser is at exact center of the hole. Again, the crosshair will visually guide the user to center the laser dot with ease even when the center laser dot disappears into the exiting hole.It is a very effective and essential feature to the SCA Laser Collimator in obtaining at even higher degree of accuracy with ease.\u003c\/p\u003e\n\u003ch4\u003eHigh Accuracy Laser Alignment\u003c\/h4\u003e\n\u003cp\u003eOur laser collimator is well centered and aligned which are critical factors for an accurate collimation.But you will be surprised that many laser collimators in the market fail in this regard.The reason is in the design and understanding of the product itself. We considered all aspect of parameters in our design.Parameters like the alignment mechanism, mechanical and optical structure of the laser itself, and more are taken as part of our design.For instance, some laser collimators actually install an off-the-shelf laser pointer in the casing.It is very cost effective (for seller), but it inherits numerous problems.In many cases, the laser pointer might not install perfectly centered in the casing due to pointer size variations and the added alignment mechanism.So the laser itself is not positioned on the true alignment point and optical axis. As the result, the laser can never be center-aligned in the enclosure.It is possible to align the laser beam parallel to the optical path but always with an offset along the optical axis.This means the laser beam is off no matter how you center adapt the laser collimator to the focuser.\u003c\/p\u003e\n\u003ch4\u003eLight Weight Design and All Aluminum Body Machined with High Precision CNC\u003c\/h4\u003e\n\u003cp\u003eMany laser collimator manufacturers give users the wrong impression, “big and heavy means rugged and stable.” Instead, HoTech engineers successfully cut the unnecessary weight on the laser collimator because we understand that additional weight on a telescope (especially open structure Newtonians) will create imbalance and structure sagging.In addition, the heavier the device is, the more inertia it will have during an impact from an accidental drop.In such an accident, the inertia force can cause more damage to the internal alignment mechanism because there is more energy required to dissipate from the impact.Therefore, the lightweight design on our laser collimator makes you gain reliable precision collimation.And of course our laser collimator uses aero-space grade lightweight aluminum material and CNC machined with the tightest tolerances, then sand blasted and anodized to protect from harsh environment. Nothing has been sacrificed while you get a long lasting state-of-the-art collimation instrument.\u003c\/p\u003e\n\u003ch4\u003eLong Lasting Battery Life\u003c\/h4\u003e\n\u003cp\u003eBy using the CR123, 3V battery as our laser power source, our laser collimator has over 65 hours of continuous use battery life time. The included CR123, 3V lithium battery operates well under a typical cold night and it has a 10 years shelf life. This is a great advantage that you don't have to worry about changing the tiny hard to find cell batteries frequently in the dark like other collimators.\u003c\/p\u003e\n\u003ch4\u003eDiffraction Grating Pattern Lens on our SCA Laser Collimator\u003c\/h4\u003e\n\u003cp\u003eSince our SCA Laser Collimator is already accurate with the SCA technology, fine laser dot, and the built-in 45 degrees faceplate, there is no need to use the DFG pattern to align the primary mirror of a Newtonian telescope.The purpose of using DFG pattern is to gross alignment the primary mirror.The user aligns the primary mirror by referencing the shadow of the secondary in the projected DFG pattern on a wall, and user counts the DFG dots around the shadow to center in the shadow.This method cannot achieve accurate alignment because the gap between each dot can make a big alignment difference.At the final alignment stage, the user must bring the laser dot back to the laser exit (the center of the 45 degrees faceplate).Our built-in 45 degrees faceplate allows you to align your primary mirror from the rear of the telescope eliminating traveling to the front of your scope repeatedly during collimation like other collimators.Therefore, there is no need to use DFG lens in conjunction with our SCA Laser Collimator.  \u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eModel: 2″ Single Dot SCA Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFocuser Size: 1.25″ \u0026amp; 2″\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Wavelength: 650nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Output Power: Class II, \u0026lt; 1mW\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOperating Voltage: 3V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery: One 3V Lithium Battery (included), 10 yrs shelf life, 40+ Operating Hours\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWeight: 6.5 oz. w\/ battery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDimension: 1.2″\/30mm dia. x 5″\/127mm (L)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eConstruction: All Areo-Space Grade Anodize Aluminum Case\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRecommend Use: Ideal for Newtonian Style Telescope, and SCT Style telescope requires one-time-only star collimation\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e2″ Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eManual\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Instructions.pdf?v=1668109379\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Manual-for-SCT.pdf?v=1668109410\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Manual for SCT\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-Star-Collimation-Instructions.pdf?v=1668109541\" target=\"_blank\"\u003eHoTech Star Collimation Instructions\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43133240344805,"sku":"HOT-SCA-2D","price":199.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-2-sca-dot-laser-collimator-sca-2d-astronomy-plus_53d028c8-f896-47ab-978c-81f1ea0a8344.png?v=1690484337"},{"product_id":"hotech-2-sca-crosshair-laser-collimator-sca-2c","title":"HoTech 2\" SCA Crosshair Laser Collimator (SCA-2C)","description":"\u003ch1\u003eHoTech 2\" SCA Crosshair Laser Collimator\u003c\/h1\u003e\n\u003cp\u003eThe HoTech 2\" SCA Crosshair Laser Collimator separates itself from all other laser collimators with its innovative self-centering adapter technology (SCA). This mechanism allows precise and \u003cb\u003eREPEATABLE \u003c\/b\u003einstallation in all brands of 1.25\" and 2\" telescope focusers thus provides accurate collimation. All laser collimators in the current market have one fundamental problem, slop in the adapting mechanism between the laser collimator and the telescope focuser.This problem is clearly recognized and often discussed among astronomers but so far there has been no definite solution in the market. No matter how tightly the tolerances machined on the laser collimator or the focuser, a small gap is required to allow installation of the laser collimator. Once the laser collimator is inserted, the required gap becomes a problem. A laser collimator is secured with one or more thumbscrews or unified compression ring. Both methods introduce very critical issues, namely inconsistant adaption from \u003cb\u003e\u003ci\u003eoff-axis\u003c\/i\u003e\u003c\/b\u003e (axial) and \u003cb\u003e\u003ci\u003enone parallel-axis\u003c\/i\u003e\u003c\/b\u003e installment that instantly destroys the precision of your collimation instrument along the entire optical axis. \u003cb\u003eOur Self-Centering Adapter cleverly eliminates the focuser slop by linearly compressing the built-in rubber rings.\u003c\/b\u003e By doing this, the diameter of the rings expands to compensate the gap.Because all rings evenly expand radially in diameter from the compression, this automatically centers the laser collimator in the focuser draw tube. And most importantly, our SCA laser collimator can be tightly installed in the focuser for a repeatable installation to provide an accurate collimation. In summary, \u003cb\u003eour SCA adapter serves three critical functions\u003c\/b\u003e. First, its expansion rings accommodate almost all focuser's manufacturing tolerances. Second, it automatically centers the adapting laser in the focuser. Third, it provides at least two evenly distributed circular contacts on the focuser's inner tube surface preventing the adapting laser from pivoting and parallel to the focuser.Once the slop factor is taken away, you can quickly collimate your telescope in confidence to achieve perfect collimation every time. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eSCA Eliminates Drawtube Slop\u003c\/h4\u003e\n\u003cp\u003eAll drawtube have manufacturing tolerances.And it requires larger diameter to accept various eyepieces and adapters.When a standard collimator is inserted, the gap between the drawtube and the inserting device became a slop problem.The rubber rings in the SCA expand radially according to users own adjustment to fill the gaps.This makes your collimator seats firmly in your drawtube becoming part of your telescope for a secure and \u003cb\u003erepeatable\u003c\/b\u003e installation.\u003c\/p\u003e\n\u003ch4\u003eSCA Keeps Laser Perfectly Parallel to the Focuser\u003c\/h4\u003e\n\u003cp\u003eThe patented multiple expanding o-rings design provides solid 360 degress even grip to the inner focuser surface keeping the adapting laser perfectly parallel to the focuser tube elimating any possible tip or tilt error from the conventional thumbscrew locking mechanism.\u003c\/p\u003e\n\u003ch4\u003eSCA Eliminates unstable locking from thumbscrew or unified compression ring\u003c\/h4\u003e\n\u003cp\u003eThe optical axis is shifted when the inserting device is locked in by thumbscrew.In some cases, some poorly made unified compression ring can cause unstable tilt when locking in the drawtube due to loose tolerances between the compression ring, inner groove, and the uneven tip of the locking thumbscrew in a drawtube.The SCA adapts the collimator itself without using the thumbscrew or the unified compression ring.\u003c\/p\u003e\n\u003ch4\u003eSCA Accepts the Imperfection of a Drawtube\u003c\/h4\u003e\n\u003cp\u003eSmall imperfection inside the drawtube like dents, scratches, and uneven burrs, the rubber rings compensates the errors and faithfully centers the collimator in the tube.In addition, even if the drawtube is slightly deformed in diameter, egg-shaped, the rubber rings in the SCA will compensate the differences and faithfully centers the collimator. A metal collet design will not be able to transform itself to the deformed shape to compensate the imperfection of a drawtube for a sturdy adaption.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMore SCA Laser Collimator Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eLaser Engraved 45º Targeting Faceplate\u003c\/h4\u003e\n\u003cp\u003eThe targeting faceplate displays the returning laser spot with a clear visual reference during adjustment. That allows you to align your primary mirror from the rear of the telescope and eliminates traveling to the front of your scope repeatedly during collimation. Collimating without the targeting faceplate, you will not be able to adjust the primary mirror in real time referencing the laser dot.In other words, you often get lost on which adjustment screws you used due to traveling back and forth for referencing the direction you have adjusted.This results in considerable time to complete the collimation and defeats the purpose of quick and easy laser collimation. HoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra! HoTech understands the importance of this, so the faceplate is a standard feature in our laser collimator.All astronomers deserve to have it without paying any extra! In addition, our faceplate viewer’s pattern is laser engraved to ensure a long lasting sharp targeting grid for best visual effects. Unlike other collimators, the target is not a sticker that will peel, or paint that can rub or chip off. We understand that you are paying for a precision instrument that is supposed to be well made.\u003c\/p\u003e\n\u003ch4\u003eFinest Projecting Laser Dot\u003c\/h4\u003e\n\u003cp\u003eKeeping the laser dot to the finest point is the key to precision collimation. But when you look closely at the laser dot from brand to brand, most laser dots appear large, not really a fine point as you imagined.This means there is guess work involved when you try to center the dot; not just centering the laser dot to the center of the faceplate, but also centering the center of the dot itself.This does not make any sense when you are trying to take the advantage of the collimated laser beam's characteristic \"which has a low beam divergence, so that the beam radius does not undergo significant changes within moderate propagation distances.\" In other words, the laser beam size within the collimation distance (laser collimator to the primary mirror and back to the faceplate) should remain a constant fine point. As you know, most laser collimator brands are not really laser manufacturers.They install an off-the-shelf laser module or pointer and align the laser in a tube without REALLY considering the user’s application, namely the operating distance for a laser beam size.HoTech has been designing and building laser modules and systems for over 10 years for various professional industries.We know exactly how a laser should work.We limit our laser beam to the finest size in the correct operating distance for optimal effect.Our understanding and experiences with the laser design permit you to have an effective and precision collimation.\u003c\/p\u003e\n\u003ch4\u003eProprietary Crosshair Laser Collimator Available\u003c\/h4\u003e\n\u003cp\u003eWith our proprietary laser crosshair, user can zero-in the laser with ease during the final collimation on the secondary and the primary mirror. The crosshair model still exibits a precision laser center dot, but with a touch of four extended laser lines from the center dot. The extension lines (crosshair) of the laser dot is the most intuitive way to guide the laser pointing for an accurate adjustment. During the secondary mirror collimation, a single dot laser projecting on the approximate center of the pre-loaded donut is difficult to identify if the laser dot is exactly on the center.The crosshair laser can easily help user to adjust the secondary mirror to point the laser on the exact center with the help of the crosshair line. During the final primary mirror collimation, the returning laser dot often hides into the laser exiting hole preventing user to identify if the returning laser is at exact center of the hole. Again, the crosshair will visually guide the user to center the laser dot with ease even when the center laser dot disappears into the exiting hole.It is a very effective and essential feature to the SCA Laser Collimator in obtaining at even higher degree of accuracy with ease.\u003c\/p\u003e\n\u003ch4\u003eHigh Accuracy Laser Alignment\u003c\/h4\u003e\n\u003cp\u003eOur laser collimator is well centered and aligned which are critical factors for an accurate collimation.But you will be surprised that many laser collimators in the market fail in this regard.The reason is in the design and understanding of the product itself. We considered all aspect of parameters in our design.Parameters like the alignment mechanism, mechanical and optical structure of the laser itself, and more are taken as part of our design.For instance, some laser collimators actually install an off-the-shelf laser pointer in the casing.It is very cost effective (for seller), but it inherits numerous problems.In many cases, the laser pointer might not install perfectly centered in the casing due to pointer size variations and the added alignment mechanism.So the laser itself is not positioned on the true alignment point and optical axis. As the result, the laser can never be center-aligned in the enclosure.It is possible to align the laser beam parallel to the optical path but always with an offset along the optical axis.This means the laser beam is off no matter how you center adapt the laser collimator to the focuser.\u003c\/p\u003e\n\u003ch4\u003eLight Weight Design and All Aluminum Body Machined with High Precision CNC\u003c\/h4\u003e\n\u003cp\u003eMany laser collimator manufacturers give users the wrong impression, “big and heavy means rugged and stable.” Instead, HoTech engineers successfully cut the unnecessary weight on the laser collimator because we understand that additional weight on a telescope (especially open structure Newtonians) will create imbalance and structure sagging.In addition, the heavier the device is, the more inertia it will have during an impact from an accidental drop.In such an accident, the inertia force can cause more damage to the internal alignment mechanism because there is more energy required to dissipate from the impact.Therefore, the lightweight design on our laser collimator makes you gain reliable precision collimation.And of course our laser collimator uses aero-space grade lightweight aluminum material and CNC machined with the tightest tolerances, then sand blasted and anodized to protect from harsh environment. Nothing has been sacrificed while you get a long lasting state-of-the-art collimation instrument.\u003c\/p\u003e\n\u003ch4\u003eLong Lasting Battery Life\u003c\/h4\u003e\n\u003cp\u003eBy using the CR123, 3V battery as our laser power source, our laser collimator has over 65 hours of continuous use battery life time. The included CR123, 3V lithium battery operates well under a typical cold night and it has a 10 years shelf life. This is a great advantage that you don't have to worry about changing the tiny hard to find cell batteries frequently in the dark like other collimators.\u003c\/p\u003e\n\u003ch4\u003eDiffraction Grating Pattern Lens on our SCA Laser Collimator\u003c\/h4\u003e\n\u003cp\u003eSince our SCA Laser Collimator is already accurate with the SCA technology, fine laser dot, and the built-in 45 degrees faceplate, there is no need to use the DFG pattern to align the primary mirror of a Newtonian telescope.The purpose of using DFG pattern is to gross alignment the primary mirror.The user aligns the primary mirror by referencing the shadow of the secondary in the projected DFG pattern on a wall, and user counts the DFG dots around the shadow to center in the shadow.This method cannot achieve accurate alignment because the gap between each dot can make a big alignment difference.At the final alignment stage, the user must bring the laser dot back to the laser exit (the center of the 45 degrees faceplate).Our built-in 45 degrees faceplate allows you to align your primary mirror from the rear of the telescope eliminating traveling to the front of your scope repeatedly during collimation like other collimators.Therefore, there is no need to use DFG lens in conjunction with our SCA Laser Collimator.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eModel: 2″ SCA Crosshair Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFocuser Size: 1.25″ \u0026amp; 2″\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Wavelength: 650nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLaser Output Power: Class II, \u0026lt; 1mW\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOperating Voltage: 3V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery: One 3V Lithium Battery (included), 10 yrs shelf life, 40+ Operating Hours\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWeight: 6.5 oz. w\/ battery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDimension: 1.2″\/30mm dia. x 5″\/127mm (L)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eConstruction: All Areo-Space Grade Anodize Aluminum Case\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRecommend Use: Ideal for Newtonian Style Telescope\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e2″ Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBattery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eManual\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Instructions.pdf?v=1668109379\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-SCA-Laser-Collimator-Manual-for-SCT.pdf?v=1668109410\" target=\"_blank\"\u003eHoTech SCA Laser Collimator Manual for SCT\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Hotech-Star-Collimation-Instructions.pdf?v=1668109541\" target=\"_blank\"\u003eHoTech Star Collimation Instructions\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43125731524837,"sku":"HOT-SCA-2C","price":234.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-2-sca-crosshair-laser-collimator-sca-2c-astronomy-plus_615495b8-648c-456e-9f36-b52671dfd927.png?v=1690484336"},{"product_id":"hotech-advanced-ct-laser-collimator-for-2-focuser-act-m2","title":"HoTech Advanced CT Laser Collimator for 2\" Focuser (ACT-M2)","description":"\u003ch2\u003eHoTech Advanced CT Laser Collimator for 2\" Focuser\u003c\/h2\u003e\n\u003ch4\u003eInnovation Brings Affordable and Portable Collimation Into Reality\u003c\/h4\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eSince the invention of the Cassegrain Telescope in 1672 by the French sculptor Sieur Guillaume Cassegrain, the Cassegrain Telescope has evolved into various derivative designs such as the more popular Ritchey-Chrétien, Dall-Kirkham, Schmidt-Cassegrain, and Maksutov-Cassegrain. The designs have gained their popularity because of their compact and simple to produce design. With different designs, star collimation is and has always been the only effective method to collimate for Cassegrain telescope owners.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNow, backyard astronomers have an alternative to achieve excellent collimation conveniently using the HoTech Advanced CT Laser Collimator for 2″ Focuser. The Advanced CT Laser Collimator brings the collimating star to your telescope within arm reaching distance. With its short-range capability, you can perform collimation indoors – day or night – without being subjected to weather conditions. And best of all, this new collimator utilizes a clear and simple-to-read, large target display for the telescope alignment diagnostic. This large target display is positioned within a short focal distance of the telescope which allows you to collimate without guessing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eNo Star Required to Collimate\u003c\/h4\u003e\n\u003cp\u003eIn order to achieve an accurate star collimation, normally the amateur astronomer requires good seeing conditions with no cloud, no wind, stable temperature, no light pollution, a well-aligned telescope mount tracking system, telescope optical tube assemble (OTA) thermal equilibrium, and a good visible magnitude star. The visual quality of the referencing star is greatly affected by the prescribed factors most of which are all in Gods hand as you can see in the photo. Adjusting the collimation is guessing game where you move between front and the back of the telescope adjusting the corresponding alignment screw and holding your breath peeping through a high magnification eyepiece referencing the concentricity of the unstable defocused image. This can be an incredibly frustrating experience.\u003c\/p\u003e\n\u003cp\u003eAn artificial star can never simulate a real star because it is impossible to collimate with the telescope focus set at infinity. After artificial star collimation, you will need to adjust your focus back to infinity to view a real star by moving the primary mirror to a different position. The distance the primary mirror has been adjusted can accumulate mechanical tolerance errors. For some of the mass-produced SCTs, the “sticky baffle” on the primary mirror focusing mechanism may also cause mirror-flop. If a mirror-flop has occurred, it will affect the alignment position which in turn will render the collimation useless. Ideally, It is best to collimate your optics at the same viewing focusing position without major optical displacements to correspond to the final view setting. The Advanced CT Laser Collimator can accomplish this task without all the possible accumulated errors.\u003c\/p\u003e\n\u003cp\u003eThe large target display on the Advanced CT Laser Collimator brings you a clear visual cue of three projecting laser dots as the alignment reference at a very comfortable visual distance providing an accurate axial alignment error diagnostic. And during the entire collimation process, no major focusing is needed, thus minimizing the possible accumulated errors from the focusing adjustments. The referencing adjustments are made by bringing the three clearly discernable projected laser dots, projected on the target, into a concentric ring. No more peeping through the eyepiece looking for a changing, ambiguous star image. This alternative collimation method saves precious observing time by collimating the telescope and preparing the viewing programs at dusk or before dawn without the influences of the external environmental conditions.\u003c\/p\u003e\n\u003ch4\u003eCollimate Within Focal Distance From Your Telescope\u003c\/h4\u003e\n\u003cp\u003eThe Advanced CT Laser Collimator does not require long focal distances to achieve high-accuracy collimation. Utilizing the installed flat mirror at the focal point (eyepiece location), the collimator lasers double-passes both your primary and secondary mirrors and magnifies the alignment errors to a higher accuracy level. In addition, it also cuts the collimating distance in half-achieving near-field alignment process. The collimator is stationed within your telescope’s focal length directly in front of your telescope. Setting up for collimation, you will be standing between the telescope and the collimator aiming both the telescope and the collimator at each other. Then you will adjust the secondary mirror knob to bring the returning lasers on the same track. This is a very convenient one-man operation.\u003c\/p\u003e\n\u003ch4\u003eAt a Fraction of the Cost of Wavefront Interferometer Technology\u003c\/h4\u003e\n\u003cp\u003eThe state-of-the-art advanced laser optical alignment technology used in the Advanced CT Laser Collimator achieves the same rough alignment function of a costly large aperture interferometer commonly use in high-energy labs at a fraction of its cost. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Advanced CT Laser Collimator uses three collimated lasers, evenly spaced apart, to sample large aperture optical elements in your telescope. The three parallel laser beams completely simulate the light path (flat-wavefront) from a distant star and pass through the entire telescope’s optical elements and reflect back to its target for a complete and accurate double-pass diagnostic reading of your telescope optical alignment. This innovative collimation technique and technology enables the amateur astronomer achieving far-field collimation as a near-field process.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003ePrecision CNC Machined Panel and Components\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis beautifully designed instrument is precision machined from a solid block of aero-space grade aluminum. It is then hardened and anodized to keep the entire mounted laser system thermally stable allowing you to achieve accurate collimation. The rigid, ultra-thin profile, and light-weight design makes the unit portable and simple to setup and use.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003eCollimates All CT, SCT, Makustov \u0026amp; RC\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Advanced CT Laser Collimator simulates a real distant star light path, and as a result it can collimate most telescopes which primarily rely on star collimation. The collimation technique can be implemented on any size telescope. The current production model is designed to collimate telescopes with a primary mirror greater than 7-1\/5-inches and a secondary mirror obstruction diameter less than 6-1\/2-inches. For other larger sized telescope or for custom sizes, contact us.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eCollimate Your Cassegrain Telescope\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWithout using a star\u003c\/li\u003e\n\u003cli\u003eIndoor or outdoor – day or night\u003c\/li\u003e\n\u003cli\u003eFocus stays at final view setting\u003c\/li\u003e\n\u003cli\u003eWithin focal distance from your telescope\u003c\/li\u003e\n\u003cli\u003eOne-man operation\u003c\/li\u003e\n\u003cli\u003ePortable and simple to setup and use\u003c\/li\u003e\n\u003cli\u003eWorks on CT, SCT, SN Mak, \u0026amp; RC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003ch4\u003eCollimates following types of telescopes\u003c\/h4\u003e\n\u003cp\u003eClassic Cassegrain\u003cbr\u003eSchmidt Cassegrain\u003cbr\u003eMaksutov-Cassegrain\u003cbr\u003eRitchey-Chretien\u003cbr\u003eDall-Kirkham\u003cbr\u003eand most dervative Cassegrain telescope designs\u003c\/p\u003e\n\u003ch4\u003eLaser Specification\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eOutput Power: Class II, 1mW\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWavelength: 650nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAlignment Lasers: 170mm diameter spaced apart\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCrosshair Laser: 90 deg. divergent optic\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePower Supply: One CR123, 3V Lithium battery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTelescope aperture limitation on ACT-M2 model:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePrimary mirror larger than 170mm(6.7″) diameter to accept the alignment lasers\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSecondary mirror obstruction smaller than 170mm(6.7″) diameter without blocking the alignment lasers\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdvanced CT Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePremium Carrying Case\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFine Adjustment Stage (FAS-01)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2″ Reflector Mirror (RM2)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCR123, 3V lithium battery\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/HoTech-Advanced-CT-Laser-Collimator-Manual.pdf?v=1668108314\" target=\"_blank\"\u003eHoTech Advanced CT Laser Collimator Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.hotechusa.com\/searchresults.asp?cat=23\" target=\"_blank\"\u003eSee More\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43125734277349,"sku":"HOT-ACT-M2","price":709.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-advanced-ct-laser-collimator-for-2-focuser-act-m2-astronomy-plus-1.webp?v=1690484381"},{"product_id":"hotech-advanced-ct-laser-collimator-for-1-25-focuser-act-m125","title":"HoTech Advanced CT Laser Collimator for 1.25\" Focuser (ACT-M125)","description":"\u003ch2\u003eHoTech Advanced CT Laser Collimator for 1.25\" Focuser\u003c\/h2\u003e\n\u003ch4\u003eInnovation Brings Affordable and Portable Collimation Into Reality\u003c\/h4\u003e\n\u003cp\u003eSince the invention of the Cassegrain Telescope in 1672 by the French sculptor Sieur Guillaume Cassegrain, the Cassegrain Telescope has evolved into various derivative designs such as the more popular Ritchey-Chrétien, Dall-Kirkham, Schmidt-Cassegrain, and Maksutov-Cassegrain. The designs have gained their popularity because of their compact and simple to produce design. With different designs, star collimation is and has always been the only effective method to collimate for Cassegrain telescope owners.\u003cbr\u003eNow, backyard astronomers have an alternative to achieve excellent collimation conveniently using the HoTech Advanced CT Laser Collimator for 1.25″ Focuser. The Advanced CT Laser Collimator brings the collimating star to your telescope within arm reaching distance. With its short-range capability, you can perform collimation indoors – day or night – without being subjected to weather conditions. And best of all, this new collimator utilizes a clear and simple-to-read, large target display for the telescope alignment diagnostic. This large target display is positioned within a short focal distance of the telescope which allows you to collimate without guessing.\u003c\/p\u003e\n\u003ch4\u003eNo Star Required to Collimate\u003c\/h4\u003e\n\u003cp\u003eIn order to achieve an accurate star collimation, normally the amateur astronomer requires good seeing conditions with no cloud, no wind, stable temperature, no light pollution, a well-aligned telescope mount tracking system, telescope optical tube assemble (OTA) thermal equilibrium, and a good visible magnitude star. The visual quality of the referencing star is greatly affected by the prescribed factors most of which are all in Gods hand as you can see in the photo. Adjusting the collimation is guessing game where you move between front and the back of the telescope adjusting the corresponding alignment screw and holding your breath peeping through a high magnification eyepiece referencing the concentricity of the unstable defocused image. This can be an incredibly frustrating experience. An artificial star can never simulate a real star because it is impossible to collimate with the telescope focus set at infinity. After artificial star collimation, you will need to adjust your focus back to infinity to view a real star by moving the primary mirror to a different position. The distance the primary mirror has been adjusted can accumulate mechanical tolerance errors. For some of the mass-produced SCTs, the “sticky baffle” on the primary mirror focusing mechanism may also cause mirror-flop. If a mirror-flop has occurred, it will affect the alignment position which in turn will render the collimation useless. Ideally, It is best to collimate your optics at the same viewing focusing position without major optical displacements to correspond to the final view setting. The Advanced CT Laser Collimator can accomplish this task without all the possible accumulated errors. The large target display on the Advanced CT Laser Collimator brings you a clear visual cue of three projecting laser dots as the alignment reference at a very comfortable visual distance providing an accurate axial alignment error diagnostic. And during the entire collimation process, no major focusing is needed, thus minimizing the possible accumulated errors from the focusing adjustments. The referencing adjustments are made by bringing the three clearly discernable projected laser dots, projected on the target, into a concentric ring. No more peeping through the eyepiece looking for a changing, ambiguous star image. This alternative collimation method saves precious observing time by collimating the telescope and preparing the viewing programs at dusk or before dawn without the influences of the external environmental conditions.\u003c\/p\u003e\n\u003ch4\u003eCollimate Within Focal Distance From Your Telescope\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe Advanced CT Laser Collimator does not require long focal distances to achieve high-accuracy collimation. Utilizing the installed flat mirror at the focal point (eyepiece location), the collimator lasers double-passes both your primary and secondary mirrors and magnifies the alignment errors to a higher accuracy level. In addition, it also cuts the collimating distance in half-achieving near-field alignment process. The collimator is stationed within your telescope's focal length directly in front of your telescope. Setting up for collimation, you will be standing between the telescope and the collimator aiming both the telescope and the collimator at each other. Then you will adjust the secondary mirror knob to bring the returning lasers on the same track. This is a very convenient one-man operation.\u003c\/p\u003e\n\u003ch4\u003eAt a Fraction of the Cost of Wavefront Interferometer Technology\u003c\/h4\u003e\n\u003cp\u003eThe state-of-the-art advanced laser optical alignment technology used in the Advanced CT Laser Collimator achieves the same rough alignment function of a costly large aperture interferometer commonly use in high-energy labs at a fraction of its cost. The Advanced CT Laser Collimator uses three collimated lasers, evenly spaced apart, to sample large aperture optical elements in your telescope. The three parallel laser beams completely simulate the light path (flat-wavefront) from a distant star and pass through the entire telescope’s optical elements and reflect back to its target for a complete and accurate double-pass diagnostic reading of your telescope optical alignment. This innovative collimation technique and technology enables the amateur astronomer achieving far-field collimation as a near-field process.\u003c\/p\u003e\n\u003ch4\u003ePrecision CNC Machined Panel and Components\u003c\/h4\u003e\n\u003cp\u003eThis beautifully designed instrument is precision machined from a solid block of aero-space grade aluminum. It is then hardened and anodized to keep the entire mounted laser system thermally stable allowing you to achieve accurate collimation. The rigid, ultra-thin profile, and light-weight design makes the unit portable and simple to setup and use.\u003c\/p\u003e\n\u003ch4\u003eCollimates All CT, SCT, Makustov \u0026amp; RC\u003c\/h4\u003e\n\u003cp\u003eThe Advanced CT Laser Collimator simulates a real distant star light path, and as a result it can collimate most telescopes which primarily rely on star collimation. The collimation technique can be implemented on any size telescope. The current production model is designed to collimate telescopes with a primary mirror greater than 7-1\/5-inches and a secondary mirror obstruction diameter less than 6-1\/2-inches. For other larger sized telescope or for custom sizes, contact us.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eCollimate Your Cassegrain Telescope\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWithout using a star\u003c\/li\u003e\n\u003cli\u003eIndoor or outdoor – day or night\u003c\/li\u003e\n\u003cli\u003eFocus stays at final view setting\u003c\/li\u003e\n\u003cli\u003eWithin focal distance from your telescope\u003c\/li\u003e\n\u003cli\u003eOne-man operation\u003c\/li\u003e\n\u003cli\u003ePortable and simple to setup and use\u003c\/li\u003e\n\u003cli\u003eWorks on CT, SCT, SN Mak, \u0026amp; RC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003ch4\u003eCollimates following types of telescopes\u003c\/h4\u003e\n\u003cp\u003eClassic Cassegrain\u003cbr\u003eSchmidt Cassegrain\u003cbr\u003eMaksutov-Cassegrain\u003cbr\u003eRitchey-Chretien\u003cbr\u003eDall-Kirkham\u003cbr\u003eand most dervative Cassegrain telescope designs\u003c\/p\u003e\n\u003ch4\u003eLaser Specification\u003c\/h4\u003e\n\u003cp\u003eOutput Power: Class II, 1mW\u003cbr\u003eWavelength: 650nm\u003cbr\u003eAlignment Lasers: 170mm diameter spaced apart\u003cbr\u003eCrosshair Laser: 90 deg. divergent optic\u003cbr\u003ePower Supply: One CR123, 3V Lithium battery\u003cbr\u003eTelescope aperture limitation on ACT-M2 model:\u003cbr\u003ePrimary mirror larger than 170mm(6.7″) diameter to accept the alignment lasers\u003cbr\u003eSecondary mirror obstruction smaller than 170mm(6.7″) diameter without blocking the alignment lasers\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdvanced CT Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePremium Carrying Case\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFine Adjustment Stage (FAS-01)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1.25″ Reflector Mirror (RM125)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCR123, 3V lithium battery\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/HoTech-Advanced-CT-Laser-Collimator-Manual.pdf?v=1668108314\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eHoTech Advanced CT Laser Collimator Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43125734310117,"sku":"HOT-ACT-M125","price":709.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-advanced-ct-laser-collimator-for-1-25-focuser-act-m125-astronomy-plus-1.webp?v=1690484381"},{"product_id":"hotech-2-reflector-mirror-rm2","title":"HoTech 2\" Reflector Mirror (RM2)","description":"\u003ch1\u003eHoTech 2\" Reflector Mirror\u003c\/h1\u003e\n\u003cp\u003eAdditional HoTech 2\" Reflector Mirror for Advanced CT Laser Collimator. Double-pass the lasers through the entire telescope optical elements for Advanced CT Laser Collimator to calibrate at higher alignment accuracy.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eType: Plano-Flat Laser Mirror\u003cbr data-mce-fragment=\"1\"\u003eMaterial: BK7A\u003cbr data-mce-fragment=\"1\"\u003eSurface Flatness: λ\/8 @ 650nm\u003cbr data-mce-fragment=\"1\"\u003eCoating : S1, Aluminum, R\u0026gt;98% for random polarization. Uncoated transparent on S2\u003cbr data-mce-fragment=\"1\"\u003eMirror Position (measured from drawtube shoulder to the first surface of the mirror): 0.59″\/15mm\u003cbr data-mce-fragment=\"1\"\u003eDimension: 2″\/55mm dia. x 6.25″\/159mm (L)\u003cbr data-mce-fragment=\"1\"\u003eWeight: 3 oz.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003e2″ Reflector Mirror\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/hotech-warranty?_pos=1\u0026amp;_psq=hotech+warra\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener\"\u003eHotech 1-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/HoTech-Advanced-CT-Laser-Collimator-Manual.pdf?v=1668108314\" target=\"_blank\"\u003eHoTech Advanced CT Laser Collimator Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43125734342885,"sku":"HOT-RM2","price":92.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-2-reflector-mirror-rm2-astronomy-plus_4e5118b9-f173-4f10-a886-2fddc5636538.png?v=1690484381"},{"product_id":"hotech-1-25-reflector-mirror-rm125","title":"HoTech 1.25\" Reflector Mirror (RM125)","description":"\u003ch2\u003eHoTech 1.25\" Reflector Mirror\u003c\/h2\u003e\n\u003cp\u003eAdditional HoTech 1.25\" Reflector Mirror for Advanced CT Laser Collimator. Double-pass the lasers through the entire telescope optical elements for Advanced CT Laser Collimator to calibrate at higher alignment accuracy.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Plano-Flat Laser Mirror\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e BK7A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eSurface Flatness\u003c\/strong\u003e: λ\/8 @ 650nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eCoating :\u003c\/strong\u003e S1, Aluminum, R\u0026gt;98% for random polarization. Uncoated transparent on S2\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eMirror Position (measured from drawtube shoulder to the first surface of the mirror)\u003c\/strong\u003e: 0.59″\/15mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eDimension:\u003c\/strong\u003e 1.25″\/31.75mm dia. x 4″\/102mm (L)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eWeight: \u003c\/strong\u003e1.86 oz.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003e1.25″ Reflector Mirror\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/HoTech-Advanced-CT-Laser-Collimator-Manual.pdf?v=1668108314\" target=\"_blank\"\u003eHoTech Advanced CT Laser Collimator Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":43125734375653,"sku":"HOT-RM125","price":92.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-1-25-reflector-mirror-rm125-astronomy-plus_a7d2154c-53eb-40df-993a-99d27ee20513.png?v=1690484387"},{"product_id":"hotech-hyperstar-laser-collimator","title":"HoTech HyperStar Laser Collimator","description":"\u003ch2\u003eHoTech HyperStar Laser Collimator\u003c\/h2\u003e\n\u003cp\u003eThis patented HoTech HyperStar Laser Collimator elevates the HyperStar collimation into a new dimension.\u003c\/p\u003e\n\u003ch4\u003eAccurate Collimation without using a Star\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg height=\"128\" width=\"128\" src=\"https:\/\/www.hotechusa.com\/v\/vspfiles\/templates\/104\/images\/star%20test02.jpg\" alt=\"\" style=\"float: left;\"\u003e\u003c\/div\u003e\n\u003cp\u003eIn order to achieve an accurate star collimation, normally the amateur astronomer requires good seeing conditions with no cloud, no wind, stable temperature, no light pollution, a well-aligned telescope mount tracking system, telescope optical tube assemble (OTA) thermal equilibrium, and a good visible magnitude star. The visual quality of the referencing star is greatly affected by the prescribed factors most of which are all in Gods hand as you can see in the photo. Adjusting the collimation is guessing game where you move between front and the back of the telescope adjusting the corresponding alignment screw and holding your breath peeping through a high magnification eyepiece referencing the concentricity of the unstable defocused image. This can be an incredibly frustrating experience.\u003c\/p\u003e\n\u003cp\u003eAn artificial star can never simulate a real star because it is impossible to collimate with the telescope focus set at infinity. After artificial star collimation, you will need to adjust your focus back to infinity to view a real star by moving the primary mirror to a different focal position. The distance the primary mirror has been adjusted can accumulate mechanical tolerance errors. For some of the mass produced SCTs, the “sticky baffle” on the primary mirror focusing mechanism may also cause mirror-flop. If a mirror-flop has occurred, it will affect the alignment position which in turn will render the collimation useless. Ideally, it is best to collimate your optics at the same viewing focusing position without major optical displacements to correspond to the final view setting. The HyperStar Laser Collimator can accomplish this task without all the possible accumulated errors.\u003c\/p\u003e\n\u003ch4\u003eCollimate Within Focal Distance From Your Telescope\u003c\/h4\u003e\n\u003cp\u003eThe HyperStar Laser Collimator does not require long distances to achieve high-accuracy collimation. Utilizing the installed flat mirror at the focal point (imaging sensor location), the collimator lasers double-passes the optical train and magnifies the alignment errors to a higher accuracy level. In addition, it also cuts the collimating distance in half-achieving near-field alignment process. The collimator is stationed within your telescope’s focal length directly in front of your telescope. Setting up for collimation, you will be standing between the telescope and the collimator aiming both the telescope and the collimator at each other. Then you will adjust the HyperStar collimation knobs to bring the returning lasers on the same track. This is a very convenient one-man-operation collimation task.\u003c\/p\u003e\n\u003ch4\u003ePrecision CNC Machined Panel and Components\u003c\/h4\u003e\n\u003cp\u003eThis beautifully designed instrument is precision machined from a solid block of aero-space grade aluminum. It is then hardened and anodized to keep the entire mounted laser system thermally stable allowing you to achieve accurate collimation. The rigid, ultra-thin profile, and light-weight design makes the unit portable and simple to setup and use.\u003c\/p\u003e\n\u003ch4\u003eUpgrade Kit Available for ACT Laser Collimator Owners\u003c\/h4\u003e\n\u003cp\u003eFor users already purchased the Advanced CT Laser Collimator, you may purchase the corresponding Upgrade Kit without purchasing the laser unit. The Kit will include the proper sized HyperStar adapter and the new developed dual-sided reflector mirror for your convenience.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIntroducing the fast and precision laser collimator for HyperStar telescope\u003cbr\u003eThis patented collimator elevates the HyperStar collimation into a new dimension.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate collimation without using a star.\u003c\/li\u003e\n\u003cli\u003eCollimate indoor at final view setting without taking up your precious observing time.\u003c\/li\u003e\n\u003cli\u003eAchieving complete optical train alignment using one device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1. The HLC-925 can collimate my SCT via the Hyperstar, but can I also collimate my SCT via the standard focuser on the back ?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1. Yes, but on condition that your SCT has a 2'' focuser. In focuser collimation mode, you will need to remove the secondary mirror in order for the laser to properly co-align. You cannot use the scope in both mode at the same time.  Each configuration has its own collimation calibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2. To collimate via the 2'' focuser, do I need additionnal accessories ?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2. No. Since you already have a 2'' focuser, no need for additional accessories. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3. I only have a 1.25'' focuser. How can I use this product for regular collimation ?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3. You will need the \u003ca rel=\"noopener\" href=\"https:\/\/istronomyplus.com\/products\/hotech-1-25-reflector-mirror-rm125\" target=\"_blank\"\u003eRM125 adapter\u003c\/a\u003e to use this collimator with a 1.25'' focuser. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4. Do I need RM2 adapter, or HK-925 adapter,  to use this product in regular collimation mode ? \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA4. The RM2 would be a redundent item, since the HLC-925 already has the necessary accessories to collimate in a 2'' focuser. The kit already include the HK-925 adapter.\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eLaser Specification\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eOutput Power: Class II, 1mW\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWavelength: 635nm and 650nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAlignment Lasers: 170mm diameter spaced apart\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCrosshair Laser: 90 deg. divergent optic\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePower Supply: One CR123, 3V Lithium battery\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdvanced CT Laser Collimator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHyperStar reflector mirror adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHigh accuracy dual-sided reflector mirror with detachable target cap\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFine Adjustment Stage\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCR123 3V battery\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePremium carrying case with manual\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/HoTech-Advanced-CT-Laser-Collimator-Manual.pdf?v=1668108314\" target=\"_blank\"\u003eHoTech Advanced CT Laser Collimator Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e","brand":"Hotech","offers":[{"title":"8'' Hyperstar","offer_id":43669965930725,"sku":"HOT-HLC-800","price":774.0,"currency_code":"CAD","in_stock":true},{"title":"9.25'' \u0026 11'' Hyperstar","offer_id":43669965963493,"sku":"HOT-HLC-925","price":795.0,"currency_code":"CAD","in_stock":true},{"title":"14'' Hyperstar","offer_id":43669965996261,"sku":"HOT-HLC-140","price":817.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-hyperstar-laser-collimator-astronomy-plus_edbab7b0-439c-4ba6-a2bc-83bfb2de56ec.png?v=1690484387"},{"product_id":"hotech-hyperstar-laser-collimator-upgrade-kit","title":"HoTech HyperStar Laser Collimator Upgrade Kit","description":"\u003ch2\u003eHoTech HyperStar Laser Collimator Upgrade Kit\u003c\/h2\u003e\n\u003cp\u003eFor users already purchased the Advanced CT Laser Collimator, you may purchase the corresponding HoTech HyperStar Laser Collimator Upgrade Kit without purchasing the laser unit. The Kit will include the proper sized HyperStar adapter and the new developed dual-sided reflector mirror for your convenience. This patented HoTech HyperStar Laser Collimator elevates the HyperStar collimation into a new dimension. \u003c\/p\u003e\n\u003ch4\u003eAccurate Collimation without using a Star\u003c\/h4\u003e\n\u003cp\u003eIn order to achieve an accurate star collimation, normally the amateur astronomer requires good seeing conditions with no cloud, no wind, stable temperature, no light pollution, a well-aligned telescope mount tracking system, telescope optical tube assemble (OTA) thermal equilibrium, and a good visible magnitude star. The visual quality of the referencing star is greatly affected by the prescribed factors most of which are all in Gods hand as you can see in the photo. Adjusting the collimation is guessing game where you move between front and the back of the telescope adjusting the corresponding alignment screw and holding your breath peeping through a high magnification eyepiece referencing the concentricity of the unstable defocused image. This can be an incredibly frustrating experience. An artificial star can never simulate a real star because it is impossible to collimate with the telescope focus set at infinity. After artificial star collimation, you will need to adjust your focus back to infinity to view a real star by moving the primary mirror to a different focal position. The distance the primary mirror has been adjusted can accumulate mechanical tolerance errors. For some of the mass produced SCTs, the “sticky baffle” on the primary mirror focusing mechanism may also cause mirror-flop. If a mirror-flop has occurred, it will affect the alignment position which in turn will render the collimation useless. Ideally, it is best to collimate your optics at the same viewing focusing position without major optical displacements to correspond to the final view setting. The HyperStar Laser Collimator can accomplish this task without all the possible accumulated errors.\u003c\/p\u003e\n\u003ch4\u003eCollimate Within Focal Distance From Your Telescope\u003c\/h4\u003e\n\u003cp\u003eThe HyperStar Laser Collimator does not require long distances to achieve high-accuracy collimation. Utilizing the installed flat mirror at the focal point (imaging sensor location), the collimator lasers double-passes the optical train and magnifies the alignment errors to a higher accuracy level. In addition, it also cuts the collimating distance in half-achieving near-field alignment process. The collimator is stationed within your telescope's focal length directly in front of your telescope. Setting up for collimation, you will be standing between the telescope and the collimator aiming both the telescope and the collimator at each other. Then you will adjust the HyperStar collimation knobs to bring the returning lasers on the same track. This is a very convenient one-man-operation collimation task. \u003c\/p\u003e\n\u003ch4\u003ePrecision CNC Machined Panel and Components\u003c\/h4\u003e\n\u003cp\u003eThis beautifully designed instrument is precision machined from a solid block of aero-space grade aluminum. It is then hardened and anodized to keep the entire mounted laser system thermally stable allowing you to achieve accurate collimation. The rigid, ultra-thin profile, and light-weight design makes the unit portable and simple to setup and use.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIntroducing the fast and precision laser collimator for HyperStar telescope\u003cbr\u003eThis patented collimator elevates the HyperStar collimation into a new dimension.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate collimation without using a star.\u003c\/li\u003e\n\u003cli\u003eCollimate indoor at final view setting without taking up your precious observing time.\u003c\/li\u003e\n\u003cli\u003eAchieving complete optical train alignment using one device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHyperStar reflector mirror adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHigh accuracy dual-sided reflector mirror with detachable target cap\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eHotech 1-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/HoTech-Advanced-CT-Laser-Collimator-Manual.pdf?v=1668108314\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eHoTech Advanced CT Laser Collimator Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e","brand":"Hotech","offers":[{"title":"8'' Hyperstar","offer_id":43669975138533,"sku":"HOT-HK-800","price":170.0,"currency_code":"CAD","in_stock":true},{"title":"9.25 \u0026 11'' Hyperstar","offer_id":43669975171301,"sku":"HOT-HK-925","price":192.0,"currency_code":"CAD","in_stock":true},{"title":"14'' Hyperstar","offer_id":43669975204069,"sku":"HOT-HK-140","price":213.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-hyperstar-laser-collimator-upgrade-kit-astronomy-plus_13bf07b6-01c6-4dad-99a5-de067365d2cd.png?v=1690484387"},{"product_id":"howie-glatter-variable-laser-brightness-cap-upgrade-si-vlb","title":"Howie Glatter Variable Laser Brightness Cap Upgrade (SI-VLB)","description":"\u003ch2\u003eHowie Flatter Variable Laser Brightness Cap Upgrade\u003c\/h2\u003e\n\u003cp\u003eVariable Laser Brightness battery cap\/switch upgrade for laser collimators.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter TuBLUG is inserted into the focusers’ draw tube in which the laser collimator then attaches to the otherside of the TuBLUG\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMatte-white 45 degree face and anti-reflection coated Barlow lens mounted in a central axial hole.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter TuBLUG is easily visible from primary adjustment position and can be turned 180 degrees to face the front and has a cut-out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter TuBlug 2\" Newtonian Collimator \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":43125746499813,"sku":"HG-SI-VLB","price":84.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-variable-laser-brightness-cap-upgrade-si-vlb-astronomy-plus-1.webp?v=1690484497"},{"product_id":"howie-glatter-square-grid-projection-attachment-si-hola-square","title":"Howie Glatter Square Grid Projection Attachment (SI-HOLA-SQUARE)","description":"\u003ch2\u003eHowie Glatter Square Grid Projection Attachment\u003c\/h2\u003e\n\u003cp\u003eWhen it comes to lasers and collimation, one of the most trusted names in the business is guru Howie Glatter. His uncompromising quality and dedication to above average products, not only put his name above the rest – but in demand as the finest available on today’s market. Usually a manufacturer doesn’t take the time to explain to a customer exactly why their product excels over others – or why it performs better – but not Howie. Here’s what he has to say about his new Howie Glatter Holographic Laser Collimator Attachment:\u003cbr\u003e\u003cbr\u003eThe holographic collimator has a removable diffractive optical element (“hologram”) placed in the beam, just ahead of the laser. It diffracts light from the laser to project a diverging, symmetrical pattern around the central beam which is quite useful for centering optical elements. My standard pattern is an illuminated ten line by ten line grid, forming a large square box enclosing eighty-one smaller squares. It covers a wider angle (21 degrees) than any other holographic collimator, which allows direct centering of f\/ 2.7 to f\/ 35 optics. It may seem counter-intuitive, but the square grid pattern gives greater sensitivity for centering circular optics of arbitrary size. If a mirror or lens is decentered by only a small amount against the grid pattern, it produces a proportionately larger asymmetry in the intersection points of the grid lines with the perimeter of the optic. Cross-hair patterns do not have this property.\u003cbr\u003eThe diffractors are individually fit to their collimators for maximum alignment accuracy, so if you have one of my holographic collimators and know someone else who has one, be careful not to switch diffractors. If switched, 15 second alignment accuracy in the holographic mode is likely to be lost, however, they will still fall within the several arc minute alignment tolerance of most other laser collimators. Because there are some collimating situations in which the diffracted pattern is unnecessary or unwanted, or maximum power in the central beam may be desired, the diffractor unscrews from the laser aperture, converting the holographic collimator to single beam mode. When it is screwed back it retains its alignment accuracy.”\u003cbr\u003e\u003cbr\u003eAccurate and Precise. What more could you ask?\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eA 10 x 10 line square grid pattern. It spreads 21 degrees which allows centering of optics as fast as f\/ 2.7. This pattern is recommended for general use because it can be used with the fastest telescopes likely to be encountered.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRemovable diffractive optical element for use in Glatter Holographic Collimators.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter Square Grid Projection Attachment\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":43125746761957,"sku":"HG-SI-HOLA-SQUARE","price":112.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-square-grid-projection-attachment-si-hola-square-astronomy-plus-1.webp?v=1690484504"},{"product_id":"howie-glatter-concentric-circle-projection-attachment-si-hola-circle","title":"Howie Glatter Concentric Circle Projection Attachment (SI-HOLA-CIRCLE)","description":"\u003ch1\u003eHowie Glatter Concentric Circle Projection Attachment\u003c\/h1\u003e\n\u003cp\u003eWhen it comes to lasers and collimation, one of the most trusted names in the business is guru Howie Glatter. His uncompromising quality and dedication to above average products, not only put his name above the rest – but in demand as the finest available on today’s market. Usually a manufacturer doesn’t take the time to explain to a customer exactly why their product excels over others – or why it performs better – but not Howie. Here’s what he has to say about his new Howie Glatter Holographic Laser Collimator Attachment:\u003cbr\u003e\u003cbr\u003eThe holographic collimator has a removable diffractive optical element (“hologram”) placed in the beam, just ahead of the laser. It diffracts light from the laser to project a diverging, symmetrical pattern around the central beam which is quite useful for centering optical elements. My standard pattern is an illuminated ten line by ten line grid, forming a large square box enclosing eighty-one smaller squares. It covers a wider angle (21 degrees) than any other holographic collimator, which allows direct centering of f\/ 2.7 to f\/ 35 optics. It may seem counter-intuitive, but the square grid pattern gives greater sensitivity for centering circular optics of arbitrary size. If a mirror or lens is decentered by only a small amount against the grid pattern, it produces a proportionately larger asymmetry in the intersection points of the grid lines with the perimeter of the optic. Cross-hair patterns do not have this property.\u003cbr\u003eThe diffractors are individually fit to their collimators for maximum alignment accuracy, so if you have one of my holographic collimators and know someone else who has one, be careful not to switch diffractors. If switched, 15 second alignment accuracy in the holographic mode is likely to be lost, however, they will still fall within the several arc minute alignment tolerance of most other laser collimators. Because there are some collimating situations in which the diffracted pattern is unnecessary or unwanted, or maximum power in the central beam may be desired, the diffractor unscrews from the laser aperture, converting the holographic collimator to single beam mode. When it is screwed back it retains its alignment accuracy.”\u003cbr\u003e\u003cbr\u003eAccurate and Precise. What more could you ask?\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eA nine-concentric circle pattern that spans 10 degrees and will reach to the edge of f\/ 5.7 optics. Recommended for scopes around this focal ratio or slower. The Laser light is spread over a smaller area it is brighter than the square grid pattern, this makes it particularly useful with Cassegrain scopes, where the pattern impact is sometimes scrutinized on the mirror surface. The projected pattern is seen only by light that is scattered from dust, dirt, or optical roughness, so a brighter pattern is better, especially if the mirrors are very clean. \u003cbr\u003e\u003cbr\u003eRemovable diffractive optical element for use in Glatter Holographic Collimators.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter Concentric Circle Projection Attachment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":43125746827493,"sku":"HG-SI-HOLA-CIRCLE","price":154.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-concentric-circle-projection-attachment-si-hola-circle-astronomy-plus-1.webp?v=1690484503"},{"product_id":"howie-glatter-cross-hair-circle-projection-attachment-si-hola-cross-hair","title":"Howie Glatter Cross-Hair \u0026 Circle Projection Attachment (SI-HOLA-CROSS-HAIR)","description":"\u003ch2\u003eHowie Glatter Cross-Hair \u0026amp; Circle Projection Attachment\u003c\/h2\u003e\n\u003cp\u003eWhen it comes to lasers and collimation, one of the most trusted names in the business is guru Howie Glatter. His uncompromising quality and dedication to above average products, not only put his name above the rest – but in demand as the finest available on today’s market. Usually a manufacturer doesn’t take the time to explain to a customer exactly why their product excels over others – or why it performs better – but not Howie. Here’s what he has to say about his new Howie Glatter Holographic Laser Collimator Attachment:\u003cbr\u003e\u003cbr\u003eThe holographic collimator has a removable diffractive optical element (“hologram”) placed in the beam, just ahead of the laser. It diffracts light from the laser to project a diverging, symmetrical pattern around the central beam which is quite useful for centering optical elements. My standard pattern is an illuminated ten line by ten line grid, forming a large square box enclosing eighty-one smaller squares. It covers a wider angle (21 degrees) than any other holographic collimator, which allows direct centering of f\/ 2.7 to f\/ 35 optics. It may seem counter-intuitive, but the square grid pattern gives greater sensitivity for centering circular optics of arbitrary size. If a mirror or lens is decentered by only a small amount against the grid pattern, it produces a proportionately larger asymmetry in the intersection points of the grid lines with the perimeter of the optic. Cross-hair patterns do not have this property.\u003cbr\u003eThe diffractors are individually fit to their collimators for maximum alignment accuracy, so if you have one of my holographic collimators and know someone else who has one, be careful not to switch diffractors. If switched, 15 second alignment accuracy in the holographic mode is likely to be lost, however, they will still fall within the several arc minute alignment tolerance of most other laser collimators. Because there are some collimating situations in which the diffracted pattern is unnecessary or unwanted, or maximum power in the central beam may be desired, the diffractor unscrews from the laser aperture, converting the holographic collimator to single beam mode. When it is screwed back it retains its alignment accuracy.”\u003cbr\u003e\u003cbr\u003eAccurate and Precise. What more could you ask?\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eUseful for aligning the returning beam on collimator face.\u003cbr\u003e\u003cbr\u003eRemovable diffractive optical element for use in Glatter Holographic Collimators.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter Concentric Circle Projection Attachment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":43125746860261,"sku":"HG-SI-HOLA-CROSS-HAIR","price":84.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-cross-hair-and-circle-projection-attachment-si-hola-cross-hair-astronomy-plus-1.webp?v=1690484504"},{"product_id":"howie-glatter-tublug-2-newtonian-collimator-si-tublug2","title":"Howie Glatter TuBlug 2\" Newtonian Collimator (SI-TUBLUG2)","description":"\u003ch2\u003eHowie Glatter TuBlug 2\" Newtonian Collimator\u003c\/h2\u003e\n\u003cp\u003eUse the Howie Glatter TuBlug 2\" with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors. The Howie Glatter TuBlug is inserted into the focusers' draw tube in which the laser collimator then attaches to the otherside of the TuBLUG Matte-white 45 degree face and anti-reflection coated Barlow lens mounted in a central axial hole. The Howie Glatter TuBlug is easily visible from primary adjustment position and can be turned 180 degrees to face the front and has a cut-out.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter TuBLUG is inserted into the focusers’ draw tube in which the laser collimator then attaches to the otherside of the TuBLUG\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMatte-white 45 degree face and anti-reflection coated Barlow lens mounted in a central axial hole.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter TuBLUG is easily visible from primary adjustment position and can be turned 180 degrees to face the front and has a cut-out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter TuBlug 2\" Newtonian Collimator \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Collimator Instructions\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/The-Howie-Glatter-TuBlug.pdf?v=1668194228\" target=\"_blank\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/The-Howie-Glatter-TuBlug.pdf?v=1668194228\"\u003eUser Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":43125746893029,"sku":"HG-SI-TUBLUG2","price":336.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-tublug-2-newtonian-collimator-si-tublug2-astronomy-plus-1.webp?v=1690484504"},{"product_id":"howie-glatter-tublug-1-25-newtonian-collimator-si-tublug1-25","title":"Howie Glatter TuBlug 1.25\" Newtonian Collimator (SI-TUBLUG1.25)","description":"\u003ch2\u003eHowie Glatter TuBlug 1.25\" Newtonian Collimator\u003c\/h2\u003e\n\u003cp\u003eUse the Howie Glatter TuBlug 1.25\" with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors. The Howie Glatter TuBlug is inserted into the focusers' draw tube in which the laser collimator then attaches to the otherside of the TuBLUG Matte-white 45 degree face and anti-reflection coated Barlow lens mounted in a central axial hole. The Howie Glatter TuBlug is easily visible from primary adjustment position and can be turned 180 degrees to face the front and has a cut-out.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter TuBLUG is inserted into the focuser in which the laser collimator then attaches to the otherside of the TuBLUG\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMatte-white 45 degree face and anti-reflection coated Barlow lens mounted in a central axial hole.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter TuBLUG is easily visible from primary adjustment position and can be turned 180 degrees to face the front and has a cut-out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter TuBlug 1.25\" Newtonian Collimator\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/The-Howie-Glatter-TuBlug.pdf?v=1668194228\" title=\"Collimator Instructions\" target=\"_blank\"\u003eUser Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":43125746925797,"sku":"HG-SI-TUBLUG1.25","price":224.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-tublug-1-25-newtonian-collimator-si-tublug1-25-astronomy-plus.webp?v=1690484504"},{"product_id":"howie-glatter-2-laser-collimator","title":"Howie Glatter 2\" Laser Collimator","description":"\u003ch2\u003eHowie Glatter 2\" Laser Collimator\u003c\/h2\u003e\nInside the collimator is a solid-state laser diode, which emits an intense laser beam through a front aperture, exactly along the central axis of the cylindrical collimator body. The beam acts as a “reference line” from which alignments are made. For a laser collimator it is of supreme importance that the beam be aligned with the collimator’s cylindrical axis, for if it is not, the resultant “alignment” of the telescope optics will be off-center and asymmetric, and the telescope will produce aberrated images.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e“When I started manufacturing laser collimators I realized that in order to produce consistent and accurate results they must be highly resistant to mechanical shock, so that internal laser alignment is maintained. I experimented with this aspect of collimator construction and developed a design which tremendously increased shock resistance. After aligning the laser within 15 arc seconds, I shock test each collimator by whacking it against a block of urethane plastic (urethane prevents marring), striking it at least a dozen times on three axis. I then recheck the laser alignment, and if it has not changed the collimator passes. I believe this is the most important difference setting my collimator apart from all others I know of. They will withstand a shock equivalent to dropping from eyepiece position, up the ladder on a big Dob, without alteration of laser alignment.”\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe beam from all red diode lasers used in collimators is fuzzy-edged and elliptical in cross-section. When collimating, you sometimes must judge the location of the center of the spot by eye. To improve collimating precision, all of my collimators (except 532nm) are supplied with a removable accessory plastic aperture stop having a 1mm hole, which push-fits into the laser aperture. It produces a tiny, circular beam impact which allows more accurate alignment. With the holographic collimators, it is not used at the same time as the optional holographic feature, and the diffractor must be removed to install the stop. With the stop inserted the beam impact at a distance of one meter or more looks like a star diffraction pattern, with a central dot surrounded by diffraction rings. The surrounding rings can help in centering the beam very accurately.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eI offer the red holographic collimators with a choice of either 650 nanometer or 635nm wavelength. The two lasers have the same radiometric power output, but because the human eye’s sensitivity to the shorter wavelength is greater, the 635nm. laser appears about two or three times brighter. The higher cost of 635nm laser diodes increases the collimator price, but it enables optional holographic collimation in brighter ambient light. If you intend to collimate in early twilight, it is a good choice. In darkness, however, the 650nm laser is quite adequate. Because single beam collimators concentrate all the laser light in the central beam, the 650nm laser is quite adequate for them.”\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePrecise… Accurate… and Durable… What more could you ask?\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle deep red beam operates at 635nm \/ 650nm \/ 532nm. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter Holographic Laser Collimator incorporates a solid state laser diode that does not fade or change with time and use. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFactory-aligned to 15 arc-seconds providing 0.1 inch accuracy at a distance of 20 feet, \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter Laser Collimator is shock resistant to keep its alignment – even when dropped. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes 123A lithium battery, 1mm aperture stop, and protective case.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter 2\" Laser Collimator - 635nm \/ 650nm \/ 532nm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncludes 123A lithium battery\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1mm aperture stop\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eProtective case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"635nm Red Beam","offer_id":43673364758757,"sku":"HG-SI-LC2-635","price":420.0,"currency_code":"CAD","in_stock":true},{"title":"650nm Red Beam","offer_id":43673364889829,"sku":"HG-SI-LC2-650","price":392.0,"currency_code":"CAD","in_stock":true},{"title":"532nm Green Beam","offer_id":43673365020901,"sku":"HG-SI-LC2-532","price":595.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-2-laser-collimator-astronomy-plus.webp?v=1690484513"},{"product_id":"howie-glatter-1-25-laser-collimator","title":"Howie Glatter 1.25\" Laser Collimator","description":"\u003ch2\u003eHowie Glatter 1.25\" Laser Collimator\u003c\/h2\u003e\nWhen it comes to lasers and collimation, one of the most trusted names in the business is guru Howie Glatter. His uncompromising quality and dedication to above average products, not only put his name above the rest – but in demand as the finest available on today’s market. Usually a manufacturer doesn’t take the time to explain to a customer exactly why their product excels over others – or why it performs better – but not Howie. Here’s what he has to say about his new Howie Glatter Laser Collimator:\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e“The lasers in my collimators are class IIIa lasers (maximum beam power: 5 thousandths of a Watt), and are quite safe if used with reasonable precaution. Direct or mirror-reflected eye exposure to the laser beam should always be avoided! You must be careful when collimating to ensure that the beam does not enter anyone’s eye. There is no problem in viewing the beam’s impact directly on a surface as long as the surface produces a diffuse reflection. The beam impact may also be safely viewed on a mirror or lens surface if the reflected or transmitted beam is not directed towards your eye. Information from studies I have seen suggests that in order to induce permanent damage, a class IIIa laser beam must stay focused on the retina for a long time. It’s unlikely for this to happen because the pupil is a very small target and because we have a blink and aversion reflex to bright light. However, all precautions should still be followed to avoid the beam entering anyone’s eye! A badly miscollimated Newtonian or Cassegrain telescope may allow the beam to exit the front of the telescope, so when collimating, check first by pointing the telescope at a wall or screen to see if the beam is getting out. With unobstructed telescopes such as refractors, the beam will always exit the front of the telescope, so run a strip of masking tape across a diameter of the dew cap opening as a safety beam stop.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eInside the collimator is a solid-state laser diode, which emits an intense laser beam through a front aperture, exactly along the central axis of the cylindrical collimator body. The beam acts as a “reference line” from which alignments are made. For a laser collimator it is of supreme importance that the beam be aligned with the collimator’s cylindrical axis, for if it is not, the resultant “alignment” of the telescope optics will be off-center and asymmetric, and the telescope will produce aberrated images.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eWhen I started manufacturing laser collimators I realized that in order to produce consistent and accurate results they must be highly resistant to mechanical shock, so that internal laser alignment is maintained. I experimented with this aspect of collimator construction and developed a design which tremendously increased shock resistance. After aligning the laser within 15 arc seconds, I shock test each collimator by whacking it against a block of urethane plastic (urethane prevents marring), striking it at least a dozen times on three axis. I then recheck the laser alignment, and if it has not changed the collimator passes. I believe this is the most important difference setting my collimator apart from all others I know of. They will withstand a shock equivalent to dropping from eyepiece position, up the ladder on a big Dob, without alteration of laser alignment.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe beam from all red diode lasers used in collimators is fuzzy-edged and elliptical in cross-section. When collimating, you sometimes must judge the location of the center of the spot by eye. To improve collimating precision, all of my collimators (except 532nm) are supplied with a removable accessory plastic aperture stop having a 1mm hole, which push-fits into the laser aperture. It produces a tiny, circular beam impact which allows more accurate alignment. With the holographic collimators, it is not used at the same time as the holographic feature, and the diffractor must be removed to install the stop. With the stop inserted the beam impact at a distance of one meter or more looks like a star diffraction pattern, with a central dot surrounded by diffraction rings. The surrounding rings can help in centering the beam very accurately.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eI offer the red holographic collimators with a choice of either 650 nanometer or 635nm wavelength. The two lasers have the same radiometric power output, but because the human eye’s sensitivity to the shorter wavelength is greater, the 635nm. laser appears about two or three times brighter. The higher cost of 635nm laser diodes increases the collimator price, but it enables holographic collimation in brighter ambient light. If you intend to collimate in early twilight, it is a good choice. In darkness, however, the 650nm laser is quite adequate. Because single beam collimators concentrate all the laser light in the central beam, the 650nm laser is quite adequate for them.”\u003cbr\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003c\/h3\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle deep red beam operates at 635nm \/ 650nm. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter Holographic Laser Collimator incorporates a solid state laser diode that does not fade or change with time and use. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFactory-aligned to 15 arc-seconds providing 0.1 inch accuracy at a distance of 20 feet, \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter Laser Collimator is shock resistant to keep its alignment – even when dropped. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes 123A lithium battery, 1mm aperture stop, and protective case.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter 1.25\" Laser Collimator - 635nm \/ 650nm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncludes 123A lithium battery\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1mm aperture stop\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eProtective case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"635nm","offer_id":43673062342885,"sku":"HG-SI-LC125-635","price":308.0,"currency_code":"CAD","in_stock":true},{"title":"650nm","offer_id":43673062605029,"sku":"HG-SI-LC125-650","price":294.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-1-25-laser-collimator-astronomy-plus.webp?v=1690484513"},{"product_id":"howie-glatter-1-25-2-laser-collimator","title":"Howie Glatter 1.25\"-2\" Laser Collimator","description":"\u003ch2\u003eHowie Glatter 1.25\"-2\" Laser Collimator\u003c\/h2\u003e\n\u003cp\u003eWhen I started manufacturing laser collimators I realized that in order to produce consistent and accurate results they must be highly resistant to mechanical shock, so that internal laser alignment is maintained. I experimented with this aspect of collimator construction and developed a design which tremendously increased shock resistance. After aligning the laser within 15 arc seconds, I shock test each collimator by whacking it against a block of urethane plastic (urethane prevents marring), striking it at least a dozen times on three axis. I then recheck the laser alignment, and if it has not changed the collimator passes. I believe this is the most important difference setting my collimator apart from all others I know of. They will withstand a shock equivalent to dropping from eyepiece position, up the ladder on a big Dob, without alteration of laser alignment.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe beam from all red diode lasers used in collimators is fuzzy-edged and elliptical in cross-section. When collimating, you sometimes must judge the location of the center of the spot by eye. To improve collimating precision, all of my collimators (except 532nm) are supplied with a removable accessory plastic aperture stop having a 1mm hole, which push-fits into the laser aperture. It produces a tiny, circular beam impact which allows more accurate alignment. With the holographic collimators, it is not used at the same time as the holographic feature, and the diffractor must be removed to install the stop. With the stop inserted the beam impact at a distance of one meter or more looks like a star diffraction pattern, with a central dot surrounded by diffraction rings. The surrounding rings can help in centering the beam very accurately.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eI offer the red holographic collimators with a choice of either 650 nanometer or 635nm wavelength. The two lasers have the same radiometric power output, but because the human eye’s sensitivity to the shorter wavelength is greater, the 635nm. laser appears about two or three times brighter. The higher cost of 635nm laser diodes increases the collimator price, but it enables holographic collimation in brighter ambient light. If you intend to collimate in early twilight, it is a good choice. In darkness, however, the 650nm laser is quite adequate. Because single beam collimators concentrate all the laser light in the central beam, the 650nm laser is quite adequate for them.”\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePrecise… Accurate… and Durable… What more could you ask?\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle deep red beam operates at 635nm \/ 650nm. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter Holographic Laser Collimator incorporates a solid state laser diode that does not fade or change with time and use. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFactory-aligned to 15 arc-seconds providing 0.1 inch accuracy at a distance of 20 feet, \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Howie Glatter Laser Collimator is shock resistant to keep its alignment – even when dropped. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes 123A lithium battery, 1mm aperture stop, and protective case.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHowie Glatter 2\" \/ 1.25\" Laser Collimator - 635nm \/ 650nm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncludes 123A lithium battery\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1mm aperture stop\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eProtective case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003cp\u003eHowie Glatter Limited Lifetime Warranty\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"635nm Red Beam","offer_id":43673246171365,"sku":"HG-SI-LC2125-635","price":448.0,"currency_code":"CAD","in_stock":true},{"title":"650nm Red Beam","offer_id":43673246499045,"sku":"HG-SI-LC2125-650","price":434.0,"currency_code":"CAD","in_stock":true},{"title":"532nm Green Beam","offer_id":43673246761189,"sku":"HG-SI-LC2125-532","price":658.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howie-glatter-1-25-2-laser-collimator-astronomy-plus.webp?v=1690484513"},{"product_id":"celestron-1-25-collimation-eyepiece-94182","title":"Celestron 1.25\" Collimation Eyepiece (94182)","description":"\u003ch1\u003eCelestron 1.25\" Collimation Eyepiece\u003c\/h1\u003e\n\u003cp\u003eThe Celestron Cheshire Eyepiece is ideal for precise collimation of Newtonians and helpful for aligning Schmidt-Cassegrains. This special eyepiece fits into 1.25\" focusers or diagonals.\u003c\/p\u003e\n\u003cp\u003eAlignment is easy using the small opening on one end and thin cross-hairs at the other end. The collimation eyepiece is more accurate than the simple Collimation Tool.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Celestron Cheshire Collimation Eyepiece is ideal for precise collimation of Newtonians and helpful for aligning Schmidt-Cassegrains\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCelestron 1.25\" Collimation Eyepiece\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":43125765013733,"sku":"CEL-94182","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-1-25-collimation-eyepiece-94182-astronomy-plus_c16c0102-e5db-4211-89cd-8b5731092d2e.png?v=1690484937"},{"product_id":"antares-1-25-laser-collimator-lc","title":"Antares 1.25\" Laser Collimator (LC)","description":"\u003ch2\u003eAntares 1.25\" Laser Collimator\u003c\/h2\u003e\n\u003cp\u003eAlign your optics with a precision the Antares 1.25\" Laser Collimator. An absolute must for Aspheric system performance. Lathe collimated.  \u003c\/p\u003e\n\u003cp\u003e-Please note that we do not accept returns for collimation tools. We will only accept exchange for another collimation tool.\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\nAntares 1.25\" Laser Collimator\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cbr\u003e\n\u003cdiv class=\"value\" data-mce-fragment=\"1\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAntares 1-Year Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Antares","offers":[{"title":"Default Title","offer_id":43133397205221,"sku":"ANT-LC","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/antares-1-25-laser-collimator-lc-astronomy-plus.webp?v=1690486229"},{"product_id":"antares-1-25-cheshire-collimator-rn","title":"Antares 1.25\" Cheshire Collimator (RN)","description":"\u003ch2\u003eAntares 1.25\" Cheshire Collimator\u003c\/h2\u003e\n\u003cp\u003eAlign your optics with a prescision Antares 1.25\" Cheshire Collimator. An absolute must for Aspheric system performance.  \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"Polaris-Badge_2qgie\"\u003e\u003cspan class=\"Polaris-Text--root_yj4ah Polaris-Text--bodySm_nvqxj Polaris-Text--regular_pjgr0\"\u003e'-Please note that we do not accept returns for collimation tools. We will only accept exchange for another collimation tool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\nAntares 1.25\" Cheshire Collimator\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cbr\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"value\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAntares 1-Year Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Antares","offers":[{"title":"Default Title","offer_id":43760356917477,"sku":"ANT-RN","price":48.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/antares-1-25-cheshire-collimator-rn-astronomy-plus.webp?v=1690486228"},{"product_id":"bobs-knobs-for-skywatcher-celestron-newtonian-primary-swpri","title":"Bob's Knobs for SkyWatcher \u0026 Celestron Newtonian Primary (SWpri)","description":"\u003ch2\u003eBob's Knobs for SkyWatcher \u0026amp; Celestron Newtonian Primary\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: SkyWatcher Newtonian telescopes with factory collimation screws.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePrimary collimation\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003c\/li\u003e\n\u003cli\u003eThreads: Stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary Lock\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKnobs: Red plastic, 16 mm (5\/8”) diameter\u003c\/li\u003e\n\u003cli\u003eThreads: Stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr data-mce-fragment=\"1\"\u003eOur knobs will fit only a primary with factory collimation screws. If your telescope already has factory collimation knobs (see Item B below) our knobs will not fit.\u003cbr data-mce-fragment=\"1\"\u003eThe telescope optical tube assembly will clear the Dobsonian rocker box with primary knobs installed.\u003c\/p\u003e\n\u003cp\u003e\u003cbr data-mce-fragment=\"1\"\u003eKnobs with shorter screws and spacers replace the factory flathead Phillips collimation screws. Knobs with longer screws replace the factory set-style (grub) locking screws.\u003cbr data-mce-fragment=\"1\"\u003eSince the factory collimation and locking screws are close together, knobs must be staggered in height. The locking knobs protrude further than the collimation knobs, and they are red in color.\u003c\/p\u003e\n\u003cp\u003e\u003cbr data-mce-fragment=\"1\"\u003eProtect the locking knobs from damage, and do not support the OTA using the locking knobs as feet.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSome SkyWatcher models are equipped with factory collimation and lock knobs. Our knobs will not fit these telescopes. Although the lock knob is small, its proximity to the collimation knob prevents replacing it with a larger knob. Furthermore, the primary adjustment knob is of a different design than our replacement knobs.\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Bob's Knobs","offers":[{"title":"Default Title","offer_id":43125887074533,"sku":"BOB-SWpri","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/bob-s-knobs-for-skywatcher-and-celestron-newtonian-primary-swpri-astronomy-plus.webp?v=1690487891"},{"product_id":"bobs-knobs-for-common-newtonian-secondary","title":"Bob's Knobs for Common Newtonian Secondary","description":"\u003ch2\u003eBob's Knobs for Common Newtonian Secondary\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron C8-N\/NGT, C10-N\/NGT, Celestron \u003cspan\u003eStarSense DX, Explorer Newtonian telescopes, \u003c\/span\u003eOrion Astrograph, Astroview, SkyQuest XX and XT, Skyview, SkyWatcher, StarBlast, GSO, and many others.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSecondary Characteristics\u003c\/strong\u003e: 4-vane spider, a deeply recessed center screw, and factory headless set (grub) collimation screws. The secondary plate holding the screws is about 20 mm (3\/4”) thick. This is a very common Newtonian secondary configuration.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003eWe offer knobs with screws having either 30 mm or 35 mm length. Order knobs with a screw length sufficient to allow the knobs to clear the secondary housing. Knobs with 30 mm screws are the most common in this configuration.\u003c\/p\u003e","brand":"Bob's Knobs","offers":[{"title":"30 mm","offer_id":43575452696805,"sku":"BOB-CNsec30","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"35 mm","offer_id":43575452729573,"sku":"BOB-CNsec35","price":32.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/bob-s-knobs-for-common-newtonian-secondary-astronomy-plus_86957b57-8459-4761-aec9-3c5c82335db4.png?v=1690487891"},{"product_id":"buckeye-ducan-mask-for-sct-collimation","title":"Buckeye Duncan Mask for SCT Collimation","description":"\u003ch2\u003eBuckeye Duncan Mask for SCT Collimation\u003c\/h2\u003e\n\u003cp\u003eA Duncan Mask can be used to easily and quickly collimate your SCT. Instructions are provided below.    \u003cbr\u003e\u003cbr\u003eThe mask comes in three sections that \"snap-fit\" together and can be taken apart for easier storage (C5 and C6 are one piece, 14\" and larger are 6 sections). \u003cbr\u003e\u003cbr\u003eFeel free to contact me if you do not see your scope listed.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePrinted in durable, temperature tolerant PETG filament.\u003c\/span\u003e\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c!--\ntd {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}\n--\u003e\u003c\/style\u003e\n\u003ctable border=\"1\" dir=\"ltr\" cellpadding=\"0\" cellspacing=\"0\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"181\"\u003e \u003ccol width=\"434\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C5\"}'\u003eDuncan-C5\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C5\"}'\u003eDuncan Mask Celestron C5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C8-NF\"}'\u003eDuncan-C8-NF\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C8 (non-Fastar, pre-1998)\"}'\u003eDuncan Mask Celestron C8 (non-Fastar, pre-1998)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C9.25-NF\"}'\u003eDuncan-C9.25-NF\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C9.25 (non-Fastar, pre-1998)\"}'\u003eDuncan Mask Celestron C9.25 (non-Fastar, pre-1998)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-CClassic8\"}'\u003eDuncan-CClassic8\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron \\\"Classic 8\\\"\"}'\u003eDuncan Mask Celestron \"Classic 8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C11-NF\"}'\u003eDuncan-C11-NF\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C11 (non-Fastar, pre-1998)\"}'\u003eDuncan Mask Celestron C11 (non-Fastar, pre-1998)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C14-NF\"}'\u003eDuncan-C14-NF\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestrong C14 (non-Fastar)\"}'\u003eDuncan Mask Celestrong C14 (non-Fastar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C6\"}'\u003eDuncan-C6\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C6\"}'\u003eDuncan Mask Celestron C6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C8\"}'\u003eDuncan-C8\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C8 (including Ultima 2000)\"}'\u003eDuncan Mask Celestron C8 (including Ultima 2000)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C9.25\"}'\u003eDuncan-C9.25\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C9.25\"}'\u003eDuncan Mask Celestron C9.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C11\"}'\u003eDuncan-C11\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C11\"}'\u003eDuncan Mask Celestron C11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-C14\"}'\u003eDuncan-C14\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Celestron C14\"}'\u003eDuncan Mask Celestron C14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M8\"}'\u003eDuncan-M8\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 8\\\" LX200\/LX200GPS\/LX90\/LX90GPS\/LX50\/Model 2080 (F10)\"}'\u003eDuncan Mask Meade 8\" LX200\/LX200GPS\/LX90\/LX90GPS\/LX50\/Model 2080 (F10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M8F6.3\"}'\u003eDuncan-M8F6.3\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 8\\\" Model 2080 (F6.3)\"}'\u003eDuncan Mask Meade 8\" Model 2080 (F6.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M8LXACF\"}'\u003eDuncan-M8LXACF\u003c\/td\u003e\n\u003ctd data-sheets-textstyleruns='{\"1\":0}{\"1\":38,\"2\":{\"3\":\"Calibri\",\"4\":11}}' data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 8\\\" LX90ACF\/LX200ACF\/LS8ACF\"}'\u003e\n\u003cspan\u003eDuncan Mask Meade 8\" LX90ACF\/LX200ACF\/\u003c\/span\u003e\u003cspan\u003eLS8ACF\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M10\"}'\u003eDuncan-M10\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 10\\\" LX200\/LX200GPS\/LX90\/LX90GPS\/LX50\/Model 2120 (F10)\"}'\u003eDuncan Mask Meade 10\" LX200\/LX200GPS\/LX90\/LX90GPS\/LX50\/Model 2120 (F10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M10LXF6.3\"}'\u003eDuncan-M10LXF6.3\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 10\\\" LX200 F6.3\"}'\u003eDuncan Mask Meade 10\" LX200 F6.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M10LXACF\"}'\u003eDuncan-M10LXACF\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 10\\\" LX90ACF\/LX200ACF\"}'\u003eDuncan Mask Meade 10\" LX90ACF\/LX200ACF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M10LX600-850\"}'\u003eDuncan-M10LX600-850\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 10\\\" LX600ACF\/LX850ACF\"}'\u003eDuncan Mask Meade 10\" LX600ACF\/LX850ACF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M10LXEMC\"}'\u003eDuncan-M10LXEMC\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 10\\\" LX200 EMC\"}'\u003eDuncan Mask Meade 10\" LX200 EMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M12LX200\"}'\u003eDuncan-M12LX200\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 12\\\" LX200\/LX200GPS\"}'\u003eDuncan Mask Meade 12\" LX200\/LX200GPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M12LX850\"}'\u003eDuncan-M12LX850\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 12\\\" LX850\"}'\u003eDuncan Mask Meade 12\" LX850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M14LX200\"}'\u003eDuncan-M14LX200\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 14\\\" LX200\/LX200GPS\"}'\u003eDuncan Mask Meade 14\" LX200\/LX200GPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M14LXACF\"}'\u003eDuncan-M14LXACF\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 14\\\" LX200ACF\"}'\u003eDuncan Mask Meade 14\" LX200ACF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M14LX850\"}'\u003eDuncan-M14LX850\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 14\\\" LX850\"}'\u003eDuncan Mask Meade 14\" LX850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M16LX200\"}'\u003eDuncan-M16LX200\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 16\\\" LX200\/LX200GPS\"}'\u003eDuncan Mask Meade 16\" LX200\/LX200GPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-M16ACF-F8\"}'\u003eDuncan-M16ACF-F8\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Meade 16\\\" ACF F8\"}'\u003eDuncan Mask Meade 16\" ACF F8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-GSO16RC\"}'\u003eDuncan-GSO16RC\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask 16\\\" GSO RC (Astro-Tech, TPO, iOptron, Orion, etc.)\"}'\u003eDuncan Mask 16\" GSO RC (Astro-Tech, TPO, iOptron, Orion, etc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan-Tak-Mew180\"}'\u003eDuncan-Tak-Mew180\u003c\/td\u003e\n\u003ctd data-sheets-value='{\"1\":2,\"2\":\"Duncan Mask Takahashi Mewlon 180\"}'\u003eDuncan Mask Takahashi Mewlon 180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-2\"\u003e\n\u003ch6\u003e\n\u003cb\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-2\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp class=\"text-left\"\u003e\u003cstrong\u003eInstructions for use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1.  Make sure your scope has cooled to ambient temperature. \u003cbr\u003e2.  Point the scope at a bright star that is high in elevation.\u003cbr\u003e3.  Place the mask on the scope.  Orient the mask such that the three snap fit connection lines point to the 3 collimation screws on the Secondary as shown in the scope image to the left. \u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-10\"\u003e\n\u003cp\u003e4. A camera works best, but you can also use a high magnification eyepiece.  Grossly defocus the star. You should see three arcs that correspond to the three cutouts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-md-2\"\u003e\u003ca href=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_1.jpg\" data-mce-href=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_1.jpg\"\u003e\u003cimg src=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_1.jpg\" class=\"img-responsive\" data-mce-src=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_1.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-10\"\u003e\n\u003cp\u003e5.  As you bring the star closer to focus the curves will change into lines pointing to a common center.    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-md-2\"\u003e\u003ca href=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_2.jpg\" data-mce-href=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_2.jpg\"\u003e\u003cimg src=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_2.jpg\" class=\"img-responsive\" data-mce-src=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_2.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-10\"\u003e\n\u003cp\u003e6.  Use the lines to adjust the collimation screw opposite the line.  As you adjust the screw the line will move toward the center.  The goal is to form a perfect Y where the lines touch in the center.  \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-md-2\"\u003e\u003ca href=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_3.jpg\" data-mce-href=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_3.jpg\"\u003e\u003cimg src=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_3.jpg\" class=\"img-responsive\" data-mce-src=\"http:\/\/buckeyestargazer.net\/Store\/Images\/Duncan-Star_3.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Buckeye Stargazer","offers":[{"title":"Duncan-C5","offer_id":44004273914085,"sku":"BE-Duncan-C5","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C8-NF","offer_id":44004273946853,"sku":"BE-Duncan-C8-NF","price":34.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C9.25-NF","offer_id":44004273979621,"sku":"BE-Duncan-C9.25-NF","price":35.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-CClassic8","offer_id":44004274012389,"sku":"BE-Duncan-CClassic8","price":34.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C11-NF","offer_id":44004274045157,"sku":"BE-Duncan-C11-NF","price":43.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C14-NF","offer_id":44004274077925,"sku":"BE-Duncan-C14-NF","price":59.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C6","offer_id":44004274110693,"sku":"BE-Duncan-C6","price":36.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C8","offer_id":44004274143461,"sku":"BE-Duncan-C8","price":38.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C9.25","offer_id":44004274176229,"sku":"BE-Duncan-C9","price":39.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C11","offer_id":44004274208997,"sku":"BE-Duncan-C11","price":48.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-C14","offer_id":44004274241765,"sku":"BE-Duncan-C14","price":63.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M8","offer_id":44004274274533,"sku":"BE-Duncan-M8","price":34.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M8F6.3","offer_id":44004274307301,"sku":"BE-Duncan-M8F6.3","price":34.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M8LXACF","offer_id":44004274340069,"sku":"BE-Duncan-M8LXACF","price":34.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M10","offer_id":44004274372837,"sku":"BE-Duncan-M10","price":36.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M10LXF6.3","offer_id":44004274405605,"sku":"BE-Duncan-M10LXF6.3","price":36.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M10LXACF","offer_id":44004274438373,"sku":"BE-Duncan-M10LXACF","price":36.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M10LX600-850","offer_id":44004274471141,"sku":"BE-Duncan-M10LX600-850","price":36.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M10LXEMC","offer_id":44004274503909,"sku":"BE-Duncan-M10LXEMC","price":36.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M12LX200","offer_id":44004274536677,"sku":"BE-Duncan-M12LX200","price":50.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M12LX850","offer_id":44004274602213,"sku":"BE-Duncan-M12LX850","price":50.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M14LX200","offer_id":44004274634981,"sku":"BE-Duncan-M14LX200","price":59.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M14LXACF","offer_id":44004274667749,"sku":"BE-Duncan-M14LXACF","price":59.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M14LX850","offer_id":44004274700517,"sku":"BE-Duncan-M14LX850","price":59.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M16LX200","offer_id":44004274733285,"sku":"BE-Duncan-M16LX200","price":66.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-M16ACF-F8","offer_id":44004274766053,"sku":"BE-Duncan-M16ACF-F8","price":66.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-GSO16RC","offer_id":44004274798821,"sku":"BE-Duncan-GSO16RC","price":66.0,"currency_code":"CAD","in_stock":true},{"title":"Duncan-Tak-Mew180","offer_id":44004274831589,"sku":"BE-Duncan-Tak-Mew180","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/buckeye-ducan-mask-for-sct-collimation-astronomy-plus-1.webp?v=1690489624"},{"product_id":"hotech-astro-aimer-g3-htgl-g3","title":"Hotech Astro Aimer G3 Laser (HTGL-G3)","description":"\u003ch1\u003eHotech Astro Aimer G3 \u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eWater Resistant for all Weather Condition\u003cbr data-mce-fragment=\"1\"\u003eNow you can take your Astro Aimer to anywhere, including the dewiest of star parties. It’s perfect for camping, hiking, and rafting. Use it in the rain, or for anyemergency situation in almost any environment.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eNear 5mW Class IIIa High Output Green Laser\u003cbr data-mce-fragment=\"1\"\u003eGreen laser is 20 times brighter than red laser at the same output power as perceived by human eyes. The Class IIIa output laser power allows you to visually trace the laser line to the exact pointed star or object.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eLaser ON light indicator\u003cbr data-mce-fragment=\"1\"\u003eWhen laser is turned on, the blue LED light under laser switch will light up, shows you the green laser is on so you will not accidentally point to others or yourself.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRed and white LED flashlights\u003cbr data-mce-fragment=\"1\"\u003eControlled by knurled finish flashlight cap for easy turning, 3 variable brightness modes of red LED, low and intermediate modes for map reading, and high brightness mode (4,000 mcd) for night illumination without disrupting other star gazers' dark adapted vision. High efficient superbright white LEDs for any indoor\u003cbr data-mce-fragment=\"1\"\u003eand outdoor illumination.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTime delayed laser switch\u003cbr data-mce-fragment=\"1\"\u003eFor easy telescope aiming adjustment or any other purposes, it frees both your hands while adjusting your telescope aiming without holding the laser ON button like other green pointers.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eUniversal Mounting\u003cbr data-mce-fragment=\"1\"\u003e1\" diameter fits nicely onto most existing 6x30 finder scope mounts, and 1 standard ¼\"-20 tripod mounting hole ready for any tripod or ball mount.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePrecision machined housing\u003cbr data-mce-fragment=\"1\"\u003eWith aerospace grade aluminum and anodized for a rugged and lasting crafted instrument.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eExtra long battery life\u003cbr data-mce-fragment=\"1\"\u003eOperated by three economical AAA batteries, approximately 20 continuous hours.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eConvenient field carrying\u003cbr data-mce-fragment=\"1\"\u003ePackage includes detachable 15\" adjustable strap to hang on your neck or wrist and belt clip pouch.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications \u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1. Superbright LED flashlight:\u003c\/li\u003e\n\u003cli\u003eWhite LED: total approximate 24,000 mcd output power, GaInN material, full spectrum wavelength.\u003c\/li\u003e\n\u003cli\u003eRed LED: 4,000 mcd, AlGaInP material, 620nm wavelength.\u003c\/li\u003e\n\u003cli\u003e2. Green Laser Specifications\u003c\/li\u003e\n\u003cli\u003eOutput power : Class IIIa, \u0026lt;5mW\u003c\/li\u003e\n\u003cli\u003eWavelength: 532nm\u003c\/li\u003e\n\u003cli\u003eBatteries: Three 1.5V AAA\u003c\/li\u003e\n\u003cli\u003eBattery life: Laser up to 6 hours, Flashlight up to 20 hours\u003c\/li\u003e\n\u003cli\u003eWeight: apx. 5 oz. with batteries\u003c\/li\u003e\n\u003cli\u003eSize: 5.7” length x 1” diameter\u003c\/li\u003e\n\u003cli\u003eOperating temperature \u0026amp; humidity: 20oC ~ 30oC - \u0026lt; 95% relative humidity\u003c\/li\u003e\n\u003cli\u003eStorage temperature \u0026amp; humidity: -10oC ~ 60oC - \u0026lt; 95% relative humidity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp\u003eAstro aimer G3\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp\u003e1 year\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hotech","offers":[{"title":"Default Title","offer_id":44008285995237,"sku":"HOT-HTGL-G3","price":200.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/hotech-astro-aimer-g3-htgl-g3-astronomy-plus_ced136c2-ea95-49b3-ba74-3ada9abb8316.jpg?v=1690489655"},{"product_id":"sharpstar-1-25-collimating-eyepiece-ce","title":"SharpStar 1.25\" Collimating Eyepiece (CE)","description":"\u003ch2\u003eSharpStar 1.25\" Collimating Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThis SharpStar 1.25\" Collimating Eyepiece (CE) is a must-have for any Newtonian or Cassegrain telescope. With a convenient design to easily adjust the secondary mirror, it's perfect for accurate and precise collimation.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eSharpStar 1.25\" Collimating Eyepiece\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eManuals \u0026amp; Warranty\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAskar Warranty\u003c\/span\u003e\u003c\/p\u003e","brand":"SharpStar","offers":[{"title":"Default Title","offer_id":44039431356645,"sku":"SS-CE","price":55.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/sharpstar-1-25-collimating-eyepiece-ce-astronomy-plus.webp?v=1690490115"},{"product_id":"bobs-knobs-for-celestron-6-sct-black-oxide-c6bo","title":"Bob's Knobs for Celestron 6” SCT","description":"\u003ch2\u003eBob's Knobs for Celestron 6” SCT \u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe knobs below will fit almost all versions of the Celestron 6” Schmidt-Cassegrain secondary. Price is for a complete set of knobs.\u003cbr\u003e\u003cbr\u003eIMPORTANT NOTE: \u003c\/span\u003e\u003cspan style=\"font: 14px Arial, Verdana, Helvetica, sans-serif;\"\u003eSecondary collimation screws have threads (measured below the screw head) that are either 10 mm or 12 mm long. We include a set of white spacers to be used on the knobs if factory threads are 10 mm long. \u003c\/span\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font: 14px Arial, Verdana, Helvetica, sans-serif;\"\u003eDo NOT use the white spacers if the factory screw threads are 12 mm long\u003c\/span\u003e\u003cspan style=\"font: 14px Arial, Verdana, Helvetica, sans-serif;\"\u003e.\u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 15px; font-weight: bold;\"\u003eA. Knobs for C6 f\/10 Secondary with Metric Collimation Screw Threads\u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003e Celestron 6” (15 cm) f\/10 SCT versions (C6-A-XLT, C6-GT, C6-S, C6-SE, C6-SGT, others)\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif; font-weight: bold;\"\u003eKnobs:\u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003e Black oxide steel (black) , 12 mm (1\/2”) diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif; font-weight: bold;\"\u003eThreads:\u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003e Black oxide \u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif; color: #000000;\"\u003eAll versions of the Celestron C6 SCT have collimation screws with metric threads.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003eSecondary collimation screws have threads (measured below the screw head) that are either 10 mm or 12 mm long. We include a set of white spacers to be used on the knobs if factory threads are 10 mm long. \u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003eDo NOT use the white spacers if the factory screw threads are 12 mm long\u003c\/span\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif;\"\u003e.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif; color: #000000;\"\u003eBlack oxide steel (shown in photo) is for dry environments. Lightly oil the knob top and knob serrations periodically as an anti-corrosion measure. Stainless steel provides better corrosion protection in coastal or high humidity areas, or in places where dew or other condensation is common. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font: 12px Arial, Verdana, Helvetica, sans-serif; color: #000000;\"\u003eThe factory dust cover will usually fit properly with Bob’s Knobs installed, except on some very early versions.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003eBob's Knobs for Celestron 6” SCT Black Oxide\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eor\u003c\/p\u003e\n\u003cp\u003eStainless steel\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bob's Knobs","offers":[{"title":"A1. Black Oxide Steel (C6BO)","offer_id":46855240024293,"sku":"BOB-C6BO","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"A2. Stainless Steel (C6SS)","offer_id":46855240057061,"sku":"BOB-C6SS","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/bob-s-knobs-for-celestron-6-sct-black-oxide-c6bo-astronomy-plus.jpg?v=1690490820"},{"product_id":"bobs-knobs-for-celestron-9-25-sct","title":"Bob's Knobs for Celestron 9.25” SCT","description":"\u003ch2 data-mce-fragment=\"1\"\u003eBob's Knobs for Celestron 9.25” SCT\u003c\/h2\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e A. Knobs for C9.25 f\/10 Secondary with Standard Collimation Screw Threads\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e C9.25std\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Celestron 9.25” (23.5 cm) f\/10 SCT versions with standard collimation screw threads. Not for CPC 925 or C9.25 with “Trifid” Faster or EdgeHD optics (see Items B and C below).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eKnobs:\u003c\/strong\u003e Black plastic, 16 mm (5\/8”) diameter\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eThreads:\u003c\/strong\u003e Black anodized aluminum alloy\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003col data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSilver factory collimation screws have standard threads. Our \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page24\/page67\/page67.html\" title=\"C9.25 Hints\" data-mce-fragment=\"1\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page24\/page67\/page67.html\" target=\"self\"\u003ehints\u003c\/a\u003e will help you determine which screws are on your telescope. Make sure the knob threads match the factory screw threads before installing the knobs.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eKnobs include a set of long spacers so they clear the secondary housing lip.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCelestron 9.25” SCTs manufactured prior to 2006 have standard collimation screw threads.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003c\/h4\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e B. Knobs for C9.25 f\/10 Secondary (non-Fastar) with Metric Collimation Screw Threads\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e C9.25metBO (black oxide steel); C9.25metSS (stainless steel)\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Celestron 9.25” (23.5 cm) f\/10 SCT versions with metric screw threads (CPC 925). Not for C9.25 with “Trifid” Faster or EdgeHD optics (see Item C below).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eKnobs:\u003c\/strong\u003e Black oxide steel (black) or stainless steel (silver), 12 mm (1\/2”) diameter\u003cbr data-mce-fragment=\"1\"\u003eThreads: Black oxide or stainless steel\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003col data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBlack Phillips factory collimation screws usually have metric threads, but some black Phillips screws have standard threads. Our \u003ca title=\"C9.25 Hints\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page24\/page67\/page67.html\" data-mce-fragment=\"1\" target=\"self\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page24\/page67\/page67.html\"\u003ehints\u003c\/a\u003e will help you determine which screws are on your telescope. Make sure the knob threads match the factory screw threads before installing the knobs.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBlack oxide steel (shown in photo) is for dry environments. Lightly oil the knob top and knob serrations periodically as an anti-corrosion measure. Stainless steel provides better corrosion protection in coastal or high humidity areas, or in places where dew or other condensation is common.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThese knobs sit inside the tall lip around the perimeter of the secondary, so they may be hard to grasp with two fingers. Adjustments can be made using a thumb or finger against the inside edge of the knob.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIf your telescope has a factory-installed plastic cap over the collimation screws, it must be removed and set aside when Bob's Knobs are installed. The cover is cosmetic only and will not affect operation of the scope.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003ch4\u003eC. Knobs for C9.25 f\/10 Secondary with Metric Collimation Screw Threads and “Trifid” Fastar Housing\u003c\/h4\u003e\n\u003cbr data-mce-fragment=\"1\" data-mce-style=\"color: #666666; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12.48px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e C9.25fst\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Celestron 9.25” (23.5 cm) f\/10 SCT versions with \"Trifid\" Fastar secondary housing ONLY\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eKnobs:\u003c\/strong\u003e Black plastic, 15 mm (5\/8”) diameter\u003cbr data-mce-fragment=\"1\"\u003eThreads: Black oxide steel\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eKnobs with silver screws may come apart if they are over-tightened. We have developed a new design using black screws that have a stronger bond with the knob. If needed, contact us using the link below for free replacement.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003col data-mce-fragment=\"1\" data-mce-style=\"list-style-type: decimal; color: #666666; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12.48px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThese knobs fit only the Celestron 9.25” f\/10 SCT with a Fastar secondary which has black Phillips factory collimation screws that are recessed into the secondary housing. These knobs will fit C9.25 Fastar telescopes with or \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page24\/page-6\/index.html\" title=\"C9.25FastarNonEdge\" data-mce-fragment=\"1\" data-mce-style=\"text-decoration: underline; color: #0080ff;\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page24\/page-6\/index.html\"\u003ewithout\u003c\/a\u003e EdgeHD optics.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCollimation screws on these telescopes are small with very fine threads. Knobs must be tightened gently (just enough to hold the secondary in place) to prevent damage to either the knob or secondary assembly.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eKnobs include a set of long spacers so they sit slightly above the rotary cover opening. The rotary secondary cover must remain open when the knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bob's Knobs","offers":[{"title":"A. C9.25std","offer_id":44110846099685,"sku":"BOB-C9.25std","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B. C9.25metBO (black oxide steel)","offer_id":44110846132453,"sku":"BOB-C9.25metBO","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B. C9.25metSS (stainless steel)","offer_id":44110866612453,"sku":"BOB-C9.25metSS","price":39.0,"currency_code":"CAD","in_stock":true},{"title":"C. C9.25fst","offer_id":44110846165221,"sku":"BOB-C9.25fst","price":36.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/bob-s-knobs-for-celestron-9-25-sct-astronomy-plus-1.jpg?v=1690491182"},{"product_id":"bobs-knobs-for-celestron-8-sct","title":"Bob's Knobs for Celestron 8\" SCT","description":"\u003ch2\u003eBob's Knobs for Celestron 8\" SCT\u003c\/h2\u003e\n\u003ch4\u003eA. Knobs for C8 f\/10 Pre-1980 Orange-Tube Secondary\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C8org\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Pre-1980 Celestron 8” (20 cm) f\/10 SCT with orange optical tube and factory set-style collimation screws. These screws can be either Allen or slotted.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs will fit orange tube C8 models made prior to 1980. The secondary has factory set-style collimation screws with a fourth central screw in the secondary housing.\u003c\/li\u003e\n\u003cli\u003eTwo sets of knobs, each with a different screw length, are included with your order. Use the length that fits your telescope best. There should be two or three screw thread turns above the secondary housing and the dust cover should fit without contacting the knobs.\u003c\/li\u003e\n\u003cli\u003eDo not adjust the center screw; this is the secondary pivot screw.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eB. Knobs for C8 f\/10 Post-1980 Secondary with Standard Collimation Screw Threads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C8std\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron 8” (20 cm) f\/10 post-1980 SCT with factory Allen or silver Phillips collimation screws, with or without Fastar secondary with silver collimation screws (C8 black, or gray; Ultima 2000; NexStar 8; many others). This includes the post-2005 orange-tube. Will NOT fit pre-1980 orange tube or most scopes with black Phillips factory collimation screws.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs will fit C8 models made prior to 2005 (except pre-1980 orange tube; see Item A above), and most post-2005 models with silver factory collimation screws.\u003c\/li\u003e\n\u003cli\u003eMost models with black Phillips factory collimation screws require C8 metric knobs (Item C below). However, a few post-2005 scopes have black Phillips collimation screws with standard threads. Here are some hints to help determine which screws your telescope has. Make sure the knob threads match the factory screw threads before installing the knobs.\u003c\/li\u003e\n\u003cli\u003eWe provide spacers to raise the knobs slightly for easier use, but the spacers can be omitted if the knobs contact the inside of the full-aperture dust cover. Spacers are required for knobs installed on the Fastar secondary with silver collimation screws for proper clearance.\u003c\/li\u003e\n\u003cli\u003eSome telescope versions have a small plastic cover over the factory collimation screws. This cover must be removed and set aside when Bob's Knobs are installed. The cover is cosmetic only and will not affect operation of the scope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eC. Knobs for C8 f\/10 Secondary with Metric Collimation Screw Threads (not for EdgeHD or Hyperstar)\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C8metBO (black oxide steel); C8metSS (stainless steel)\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Most Celestron 8” (20 cm) f\/10 SCT made in 2005 and later with black Phillips factory collimation screws that have metric threads. Includes SkyWatcher SCT and non-EdgeHD Fastar. Will NOT fit Celestron telescopes made before 2005.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black oxide steel (black) or stainless steel (silver), 12 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Black oxide or stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMost models with black Phillips factory collimation screws require metric knobs. A few post-2005 scopes have black Phillips collimation screws with standard threads. Here are some hints to help determine which screws your telescope has. Make sure the knob threads match the factory screw threads before installing the knobs.\u003c\/li\u003e\n\u003cli\u003eSome C8 scopes have metric collimation screws that are 10mm long rather than the more common 8mm, and you should install knobs without the white spacers.\u003c\/li\u003e\n\u003cli\u003eThese knobs will fit the metric Fastar version only if it does NOT have EdgeHD optics. Scopes with EdgeHD optics require different knobs (Item D below).\u003c\/li\u003e\n\u003cli\u003eBlack oxide steel (shown in photos) is for dry environments. Lightly oil the knob top and knob serrations periodically as an anti-corrosion measure. Stainless steel provides better corrosion protection in coastal or high humidity areas, or in places where dew or other condensation is common.\u003c\/li\u003e\n\u003cli\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/li\u003e\n\u003cli\u003eSome telescope versions have a small plastic cover over the factory collimation screws. This cover must be removed and set aside when Bob's Knobs are installed. The cover is cosmetic only and will not affect operation of the scope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eD. Knobs for C8 f\/10 Secondary with EdgeHD Optics\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C8edgBO (black oxide steel); C8edgSS (stainless steel)\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron 8” (20 cm) f\/10 SCT with Fastar secondary and EdgeHD optics.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black oxide steel (black) or stainless steel (silver), 12 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Black oxide or stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs will fit only the Celestron 8” SCT with Fastar secondary and EdgeHD optics. These telescopes are marked “EDGEHD OPTICS” on the corrector ring. Do not use these knobs on the non-EdgeHD Fastar secondary; the screws on these knobs are too long. Be sure to check that the thread length on our knobs matches the thread length on the factory collimation screws.\u003c\/li\u003e\n\u003cli\u003eBlack oxide steel (shown in photo) is for dry environments. Lightly oil the knob top and knob serrations periodically as an anti-corrosion measure. Stainless steel provides better corrosion protection in coastal or high humidity areas, or in places where dew or other condensation is common.\u003c\/li\u003e\n\u003cli\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eE. Knobs for C8 f\/10 Secondary with Hyperstar Conversion Kit and Standard Collimation Screw Threads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C8stdhyp\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron 8” (20 cm) f\/10 SCT with standard collimation screws and the conversion kit for the Hyperstar option\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs are taller than our other standard knobs to compensate for the countersunk factory screws in the Hyperstar secondary conversion kit.\u003c\/li\u003e\n\u003cli\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eF. Knobs for C8 f\/10 Secondary with Hyperstar Conversion Kit and Metric Collimation Screw Threads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C8hypBO (black oxide steel); C8hypSS (stainless steel)\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron 8” (20 cm) f\/10 SCT with metric collimation screws and the conversion kit for the Hyperstar option\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black oxide steel (black) or stainless steel (silver), 12 mm (1\/2”) diameter\u003cbr\u003eThreads: Black oxide or stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs are taller than our other metric knobs to compensate for the countersunk factory screws in the Hyperstar secondary conversion kit.\u003c\/li\u003e\n\u003cli\u003eBlack oxide steel (shown in photo) is for dry environments. Lightly oil the knob top and knob serrations periodically as an anti-corrosion measure. Stainless steel provides better corrosion protection in coastal or high humidity areas, or in places where dew or other condensation is common.\u003c\/li\u003e\n\u003cli\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for C8 f\/10 Pre-1980 Orange-Tube Secondary (C8org)","offer_id":44112174153957,"sku":"BOB-C8org","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B. Knobs for C8 f\/10 Post-1980 Secondary with Standard Collimation Screw Threads (C8std)","offer_id":44112174186725,"sku":"BOB-C8std","price":28.0,"currency_code":"CAD","in_stock":true},{"title":"C. Knobs for C8 f\/10 Secondary with Metric Collimation Screw Threads (not for EdgeHD or Hyperstar) (C8metBO)","offer_id":44112174219493,"sku":"BOB-C8metBO","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"C. Knobs for C8 f\/10 Secondary with Metric Collimation Screw Threads (not for EdgeHD or Hyperstar) (C8metSS)","offer_id":44112174252261,"sku":"BOB-C8metSS","price":39.0,"currency_code":"CAD","in_stock":true},{"title":"D. Knobs for C8 f\/10 Secondary with EdgeHD Optics (C8edgBO)","offer_id":44112174285029,"sku":"BOB-C8edgBO","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"D. Knobs for C8 f\/10 Secondary with EdgeHD Optics (C8edgSS)","offer_id":44112174317797,"sku":"BOB-C8edgSS","price":39.0,"currency_code":"CAD","in_stock":true},{"title":"E. Knobs for C8 f\/10 Secondary with Hyperstar Conversion Kit and Standard Collimation Screw Threads (C8stdhyp)","offer_id":44112174350565,"sku":"BOB-C8stdhyp","price":28.0,"currency_code":"CAD","in_stock":true},{"title":"F. Knobs for C8 f\/10 Secondary with Hyperstar Conversion Kit and Metric Collimation Screw Threads (C8hypBO)","offer_id":44112174383333,"sku":"BOB-C8hypBO","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"F. Knobs for C8 f\/10 Secondary with Hyperstar Conversion Kit and Metric Collimation Screw Threads (C8hypSS)","offer_id":44112174416101,"sku":"BOB-C8hypSS","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/bob-s-knobs-for-celestron-8-sct-astronomy-plus.webp?v=1690491211"},{"product_id":"bobs-knobs-for-celestron-5-sct","title":"Bob's Knobs for Celestron 5\" SCT","description":"\u003ch2\u003eBob's Knobs for Celestron 5\" SCT\u003c\/h2\u003e\n\u003ch4\u003eA. Knobs for C5 f\/10 Secondary with Standard Collimation Screw ThreadsPart\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cstrong\u003ePart\u003c\/strong\u003e: C5std\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron 5” (13 cm) f\/10 SCT (C5, NexStar 5) with black Allen, silver Allen, or silver Phillips factory collimation screws. These screws have standard threads. Will NOT fit scopes with black Phillips factory collimation screws (see Item B below).\u003cbr\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs will fit all C5 models made prior to 2006, and all 2006 and later models EXCEPT those with black Phillips factory collimation screws. The black Phillips screw model requires C5 metric knobs (Item B beolw). Check that our screw threads match the factory screw threads before installing.\u003c\/li\u003e\n\u003cli\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/li\u003e\n\u003cli\u003eSome telescope versions have a small plastic cover over the factory collimation screws. This cover must be removed and set aside when Bob's Knobs are installed. The cover is cosmetic only and will not affect operation of the scope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eB. Knobs for C5 f\/10 Secondary with Metric Collimation Screw Threads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C5metBO (black oxide steel); C5metSS (stainless steel)\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron 5” (13 cm) f\/10 SCT (C5, NexStar 5SE, Omni 127) with black Phillips factory collimation screws. These screws have metric threads. Will NOT fit scopes with silver factory collimation screws (see Item A above).\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black oxide steel (black) or stainless steel (silver), 12 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Black oxide or stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs will fit only 2006 and later C5 models that have black Phillips factory collimation screws. All C5 models made prior to 2006 and all post-2006 models with black Allen or silver factory collimation screws require C5 standard knobs (Item A above). Check that our screw threads match the factory screw threads before installing.\u003c\/li\u003e\n\u003cli\u003eSome C5 scopes have metric collimation screws that are 10mm long rather than the more common 8mm. If your secondary looks like this, you have screws with 10mm thread length and you should install knobs without the white spacers.\u003c\/li\u003e\n\u003cli\u003eBlack oxide steel (shown in photo) is for dry environments. Lightly oil the knob top and knob serrations periodically as an anti-corrosion measure. Stainless steel provides better corrosion protection in coastal or high humidity areas, or in places where dew or other condensation is common.\u003c\/li\u003e\n\u003cli\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/li\u003e\n\u003cli\u003eSome telescope versions have a small plastic cover over the factory collimation screws. This cover must be removed and set aside when Bob's Knobs are installed. The cover is cosmetic only and will not affect operation of the scope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eC. Knobs for C5 f\/6 Secondary with Standard Collimation Screw Threads (rare)\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart\u003c\/strong\u003e: C5f6\u003cbr\u003e\u003cstrong\u003eFits\u003c\/strong\u003e: Celestron 5” (13 cm) f\/6 SCT only. Will not fit the Celestron 5” f\/10 SCT.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKnobs\u003c\/strong\u003e: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003e\u003cstrong\u003eThreads\u003c\/strong\u003e: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThese knobs will fit only the rare C5 f\/6 telescope. If your secondary looks like this, you have the f\/6 version.\u003c\/li\u003e\n\u003cli\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for C5 f\/10 Secondary with Standard Collimation Screw ThreadsPart (C5std)","offer_id":44114259345637,"sku":"BOB-C5std","price":28.0,"currency_code":"CAD","in_stock":true},{"title":"B1. Knobs for C5 f\/10 Secondary with Metric Collimation Screw Threads Black Oxide Steel (C5metBO)","offer_id":44114259378405,"sku":"BOB-C5metBO","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B2. Knobs for C5 f\/10 Secondary with Metric Collimation Screw Threads Stainless Steel(C5metSS)","offer_id":44114259411173,"sku":"BOB-C5metSS","price":39.0,"currency_code":"CAD","in_stock":true},{"title":"C. Knobs for C5 f\/6 Secondary with Standard Collimation Screw Threads (C5f6)","offer_id":44114259443941,"sku":"BOB-C5f6","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/bob-s-knobs-for-celestron-5-sct-astronomy-plus.webp?v=1690491231"},{"product_id":"takahashi-collimating-eyepiece-tka00441","title":"Takahashi 1.25\" Collimating eyepiece (TKA00441)","description":"\u003ch2\u003eTakahashi 1.25\" Collimating eyepiece \u003c\/h2\u003e\n\u003ch4 class=\"intro\"\u003eThe best tool for collimating your Newtonian telescope\u003c\/h4\u003e\n\u003cp\u003eThe collimation is an essential step to obtain optimal images with a telescope. It consists of adjusting the primary and secondary mirrors so that they are aligned as precisely as possible. The goal is that all the light coming from the stars is perfectly concentrated at the focus of the telescope.\u003c\/p\u003e\n\u003cp\u003eA collimating eyepiece is a small accessory that is inserted on the eyepiece holder of the telescope. Without a lens, it just allows you to place your eye exactly on the optical axis of the instrument; a very small hole is drilled in the center of the eyepiece for this purpose. Thanks to the reflections of the different optical surfaces on each other, it becomes very easy to align the mirrors geometrically. A side opening brings light to a reflective metal surface that acts as a central marker for adjustments. The procedure is performed mainly during the day or at dusk; at night, it will be necessary to illuminate the entrance of the instrument and\/or the metalized surface.\u003c\/p\u003e\n\u003cp\u003eAlthough intimidating at first for the beginner, the procedure is simple and safe and greatly optimizes observations.\u003c\/p\u003e\n\u003cp\u003eThe collimation eyepiece is the main tool for the adjustment of the mirrors of the Newtonian telescopes, whether they are on equatorial mount or on Dobson mount. It is also very useful for the adjustment of the secondary mirror of Cassegrain or Ritchey-Chrétien telescopes.\u003c\/p\u003e\n\u003cp\u003eThe Takahashi model is machined from aluminum and made in Japan. \u003c\/p\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-template--16185084641509__description\"\u003e\n\u003csection class=\"container clearfix loaded ignore\" data-carousel-type=\"section\" data-url=\"\/\/takahashiamerica.com\/cdn\/shop\/t\/3\/assets\/script.tabbed.js?v=83467205078527531921656105673\" data-section-type=\"tabbed\" data-section-id=\"template--16185084641509__description\"\u003e\n\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\n\u003cdiv aria-labelledby=\"tab-description\" role=\"tabpanel\" class=\"product-desc tab-body tab-body-content tab-body-id-template--16185084641509__description\" id=\"description\" tabindex=\"0\"\u003e\n\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThis Takahashi 1.25 in eyepiece works with Newtonian or Cassegrain telescopes as a collimating tool. (collimating tube sold separately) \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCHARACTERISTIC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTAKAHASHI COLLIMATING EYEPIECE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eItem number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTATKA00441\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eInput mechanical interface\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1.25\" (31.75 mm) male barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eOutput mechanical interface\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e45 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTakahashi Collimating eyepiece\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/takahashiamerica.com\/pages\/warranty-service?_pos=1\u0026amp;_psq=warranty\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eTakahashi 5-Years Warranty\u003c\/a\u003e\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44151178002661,"sku":"TAK-TKA00441","price":76.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/takahashi-1-25-collimating-eyepiece-tka00441-astronomy-plus-1.jpg?v=1690492089"},{"product_id":"takahashi-collimating-tube-with-crosshair-for-newtonian-tka00442","title":"Takahashi Collimating tube with crosshair for Newtonian (TKA00442)","description":"\u003ch2\u003eTakahashi Collimating tube with crosshair for Newtonian \u003c\/h2\u003e\n\u003cdiv id=\"shopify-section-template--16185084641509__description\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"template--16185084641509__description\" data-section-type=\"tabbed\" data-url=\"\/\/takahashiamerica.com\/cdn\/shop\/t\/3\/assets\/script.tabbed.js?v=83467205078527531921656105673\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\n\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\n\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--16185084641509__description\" role=\"tabpanel\" aria-labelledby=\"tab-description\" tabindex=\"0\" data-mce-tabindex=\"0\"\u003e\n\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThis Takahashi tube with crosshairs works with Newtonian or Cassegrain telescopes as a collimating tool. (collimating eyepiece sold separately) \u003c\/p\u003e\n\u003cp\u003eTakahashi adjustment tube for the Epsilon devices, it is connected to the TKP00103 adapter (Coupling S) on the telescope side via the M36.4 thread. The second part, the adjustment eyepiece TKA00441, is clamped at the back of the 1.25\" eyepiece holder, in combination of these two parts you have an accurate Cheshire eyepiece. The system charts can be found below.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTakahashi Collimating tube with crosshair for Newtonian\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/takahashiamerica.com\/pages\/warranty-service?_pos=1\u0026amp;_psq=warranty\u0026amp;_ss=e\u0026amp;_v=1.0\" data-mce-href=\"https:\/\/takahashiamerica.com\/pages\/warranty-service?_pos=1\u0026amp;_psq=warranty\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eTakahashi 5-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44151182065893,"sku":"TAK-TKA00442","price":96.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/takahashi-collimating-tube-with-crosshair-for-newtonian-tka00442-astronomy-plus-1.jpg?v=1690492089"},{"product_id":"takahashi-collimationg-scope-tka00443","title":"Takahashi Collimating scope (TKA00443)","description":"\u003ch2\u003eTakahashi Collimating scope\u003c\/h2\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-template--16185084641509__description\"\u003e\n\u003csection class=\"container clearfix loaded ignore\" data-carousel-type=\"section\" data-url=\"\/\/takahashiamerica.com\/cdn\/shop\/t\/3\/assets\/script.tabbed.js?v=83467205078527531921656105673\" data-section-type=\"tabbed\" data-section-id=\"template--16185084641509__description\"\u003e\n\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\n\u003cdiv aria-labelledby=\"tab-description\" role=\"tabpanel\" class=\"product-desc tab-body tab-body-content tab-body-id-template--16185084641509__description\" id=\"description\" tabindex=\"0\"\u003e\n\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Takahashi collimating scope is a 6 x 18mm telescope designed for use on refractor, Ritchey-Chretien and classical Cassegrain telescopes and also used on the Takahashi CN-212, Mewlons and refractors of 820mm or more in focal length.\u003c\/p\u003e\n\u003cp\u003eCannot be used on a Cassegrain instrument that employs a relay lens as part of it optical system. At the top of the scope, a focusing eyepiece is moved in or out manually to focus on the internal components. At the front of the Takahashi collimating telescope is a mirror threaded ahead of the objective lens.\u003c\/p\u003e\n\u003cp\u003eThis provides a peep hole in the center the scope looks through. The reflective side of the mirror faces the scope you are collimating at a 45° angle to the scope's light path and is illuminated by an opaque opening in the side of the Takahashi collimating telescope.\u003c\/p\u003e\n\u003cp\u003eThe Takahashi collimating telescope threads into the focuser and gives a round, white target to align the optics. Because it is threaded into the telescope being collimated, it's always precisely aligned. The Takahashi collimating telescope naturally provides a four-page instruction manual with multiple illustrations for use.\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTakahashi Collimating scope (TKA00443)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-template--16185084641509__description\"\u003e\n\u003csection class=\"container clearfix loaded ignore\" data-carousel-type=\"section\" data-url=\"\/\/takahashiamerica.com\/cdn\/shop\/t\/3\/assets\/script.tabbed.js?v=83467205078527531921656105673\" data-section-type=\"tabbed\" data-section-id=\"template--16185084641509__description\"\u003e\n\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\n\u003cdiv aria-labelledby=\"tab-description\" role=\"tabpanel\" class=\"product-desc tab-body tab-body-content tab-body-id-template--16185084641509__description\" id=\"description\" tabindex=\"0\"\u003e\n\u003cdiv class=\"tabindex\"\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/takahashiamerica.com\/pages\/warranty-service?_pos=1\u0026amp;_psq=warranty\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eTakahashi 5-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44151188226277,"sku":"TAK-TKA00443","price":375.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/takahashi-collimating-scope-tka00443-astronomy-plus-1.jpg?v=1690492089"},{"product_id":"svbony-1-25-laser-collimator-f9123a","title":"SVBONY 1.25\" Laser Collimator (F9123A)","description":"\u003ch1\u003eSVBONY 1.25\" Laser Collimator\u003c\/h1\u003e\n\u003cp\u003eThis is a newest Svbony 1.25\" red laser Collimator includes removable 2\" adapter, Designed for accurate collimation of all Newtonian and SCT reflector telescopes. Red laser collimation beam with 7 brightness levels.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e1.Red laser collimation beam with 7 brightness levels\u003cbr\u003e\u003cbr\u003e2.Can fit into 1.25\" focusers or diagonals (with removable 2\" adapter)\u003cbr\u003e\u003cbr\u003e3.Less than 5mW output power, much safer for your eyes\u003cbr\u003e\u003cbr\u003e4.Built with metal material, strong and durable\u003cbr\u003e\u003cbr\u003e5.Item Included CR2032 Lithium cell battery\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_4d508310-40c5-48c8-8ec5-ed99e9594206.jpg?v=1760731828\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2_b3120485-b982-48c1-afa4-4799a4e8b3c4.jpg?v=1760731861\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/3_c01ad5a5-2226-4622-8c00-8633809d3a4c.jpg?v=1760731873\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/4_feb0346e-d86e-4275-bc42-2f4f286dc9c8.jpg?v=1760731884\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/5_bee2b12c-a502-4049-8c87-c8d35d8fff20.jpg?v=1760731898\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/6_3b513270-2e94-4d1e-849c-d8d4efc5406e.jpg?v=1760731907\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/7_92adada2-9fdd-4ae1-a61d-f969d3d01ea2.jpg?v=1760731916\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eF9123A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eName\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLaser Collimator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWavelength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e635–655 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLess than 5 mW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNewtonian and SCT Reflector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBody Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSVBONY 1.25\" Laser Collimator\u003c\/li\u003e\n\u003cli\u003e2\" Adapter\u003c\/li\u003e\n\u003cli\u003eCR2032 Lithium cell battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/svbony-warranty\" target=\"_blank\"\u003eSvbony 1-Year Warranty \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":44175070986469,"sku":"SVB-F9123A","price":29.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/svbony-1-25-laser-collimator-f9123a-astronomy-plus.webp?v=1715809012"},{"product_id":"bobs-knob-coo-u-mates","title":"BC\u0026F Knobs Coll-U-Mates for Meade F\/10 SCT","description":"","brand":"Astronomy Plus","offers":[{"title":"Default Title","offer_id":44525332463845,"sku":"BCNF-COLL-U-MEADE-8","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/20240105_111440_1.jpg?v=1777043173"},{"product_id":"farpoint-lightbridge-collimation-upgrade-kit-16-inch-fp-321","title":"Farpoint Lightbridge collimation upgrade kit 16 inch (FP-321)","description":"\u003ch1\u003eFarpoint Lightbridge collimation upgrade kit 16 inch # FP 321\u003c\/h1\u003e","brand":"Farpoint","offers":[{"title":"Default Title","offer_id":44525569868005,"sku":"FP-321","price":5.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/20240105_114045.jpg?v=1777043177"},{"product_id":"bobs-knob-telescope-collimation-thumbscrews-for-meade-lightbridge-8-inch-primary","title":"Bob's Knob telescope collimation thumbscrews for Meade Lightbridge 8 inch primary","description":"","brand":"Astronomy Plus","offers":[{"title":"Default Title","offer_id":44574197711077,"sku":"BOB-LIGHTBRIDGE-PRIMARY","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/8888.jpg?v=1777043226"},{"product_id":"bobs-knobs-for-celestron-11-sct","title":"Bob's Knobs for Celestron 11\" SCT","description":"\u003ch2\u003eBob's Knobs for Celestron 11\" SCT\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWe offer knobs for all versions of the Celestron 11” f\/10 Schmidt-Cassegrain secondary with either standard or metric collimation screws, including Fastar, non-Fastar, and EdgeHD versions. Select knobs for your telescope from the list below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecial Note:\u003c\/strong\u003e The Celestron 11” SCT uses either standard 6-32 or metric M3 collimation screws. Allen, most silver Phillips, and set-style factory collimation screws have standard threads. Most black Phillips screws are metric. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eA. Knobs for C11 f\/10 with Flat Secondary Housing and Standard Collimation Screw Threads\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e C11std\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Celestron 11” (28 cm) f\/10 SCT versions (metal or carbon fiber tube) with flat secondary housing and standard collimation screw threads (not for CPC 1100 or EdgeHD). Does not fit the Starizona Hyperstar secondary (see Item C below).\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page100\/index.html\" title=\"C11SilverPhillips\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page100\/index.html\"\u003eSilver factory collimation screws\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e usually have standard threads, but some silver Phillips screws have metric threads. Our \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" title=\"C11 Hints\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" target=\"self\"\u003ehints\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e will help you determine which screws are on your telescope. Make sure the knob threads match the factory screw threads before installing the knobs.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCelestron 11” SCTs manufactured prior to 2006 have standard collimation screw threads.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eB. Knobs for C11 f\/10 with Flat Secondary Housing (non-Fastar) and Metric Collimation Screw Threads\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e C11metBO (black oxide steel); C11metSS (stainless steel)\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Celestron 11” (28 cm) f\/10 SCT versions with flat secondary housing and metric collimation screw threads (most CPC 1100). Does not fit the Starizona Hyperstar secondary (see Item D below).\u003cbr\u003e\u003cbr\u003eKnobs: Black oxide steel (black) or stainless steel (silver), 12 mm (1\/2”) diameter\u003cbr\u003eThreads: Black oxide or stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page99\/index.html\" title=\"C11BlackPhillips\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page99\/index.html\"\u003eBlack Phillips factory collimation screws\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e usually have metric threads, but some black Phillips screws have standard threads. Our \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" title=\"C11 Hints\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" target=\"self\"\u003ehints\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e will help you determine which screws are on your telescope. Make sure the knob threads match the factory screw threads before installing the knobs.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBlack oxide steel (shown in photo) is for dry environments. Lightly oil the knob top and knob serrations periodically as an anti-corrosion measure. Stainless steel provides better corrosion protection in coastal or high humidity areas, or in places where dew or other condensation is common.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIf your telescope has a factory-installed plastic cap over the collimation screws, it must be removed and set aside when Bob's Knobs are installed. The cover is cosmetic only and will not affect operation of the scope.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e(Black oxide steel)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eC. Knobs for C11 f\/10 with “Trifid” Fastar Secondary Housing and Standard Collimation Screw Threads - (NOT EdgeHD)\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e C11stdfst\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Celestron 11” (28 cm) f\/10 SCT versions (metal or carbon fiber tube) with standard thread factory collimation screws and \u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page101\/index.html\" title=\"C11FastarSilver\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page101\/index.html\" target=\"self\"\u003e\"Trifid\" rotary cover Fastar secondary housing\u003c\/a\u003e\u003c\/u\u003e. Factory collimation screws are silver Phillips. These knobs will also fit the \u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page102\/index.html\" title=\"C11Hyperstar\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page102\/index.html\" target=\"self\"\u003eC11 with Starizona Hyperstar\u003c\/a\u003e\u003c\/u\u003e only if the collimation screws have standard threads.\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\n\u003cspan\u003eThese telescopes can have factory collimation screws with either standard or metric threads. Silver Phillips collimation screws are standard thread. Some black Phillips collimation screws are also standard thread. See our \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" title=\"C11 Hints\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" target=\"self\"\u003ehints\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e for more information. If you discover your knobs have the wrong threads, you can return them for a refund and order the correct knobs. Alternatively, you can order knobs with both standard and metric thread screws and return the unused set for a full refund.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe rotary secondary cover must remain open when the knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eD. Knobs for C11 f\/10 with Fastar Secondary Housing and Metric Collimation Screw Threads - (Edge HD)\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e C11metfst\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Celestron 11” (28 cm) f\/10 SCT versions (metal or carbon fiber tube) with metric thread factory collimation screws and Fastar secondary housing. This housing can have either a \u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page134\/index.html\" title=\"C11FastarBlackTrifid\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page134\/index.html\"\u003e\"Trifid\" rotary cover\u003c\/a\u003e\u003c\/u\u003e or a \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page-2\/index.html\" title=\"C11FastarBlackKnob\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page-2\/index.html\"\u003esimple knob in the center\u003c\/a\u003e and no rotary cover. Factory collimation screws are black Phillips. These knobs will fit the \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page103\/index.html\" title=\"C11EdgeHD\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page103\/index.html\" target=\"self\"\u003eC11 with EdgeHD optics\u003c\/a\u003e. They will also fit the \u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page102\/index.html\" title=\"C11Hyperstar\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page102\/index.html\" target=\"self\"\u003eC11 with Starizona Hyperstar\u003c\/a\u003e\u003c\/u\u003e only if the collimation screws have metric threads.\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Black oxide steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\n\u003cspan\u003eThese telescopes can have factory collimation screws with either standard or metric threads. Most models with black Phillips collimation screws have metric threads. There are a few black Phillips screws with standard threads. See our \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" title=\"C11 Hints\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page25\/page51\/C11hints.html\" target=\"self\"\u003ehints\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e for more information. If you discover your knobs have the wrong threads, you can return them for a refund and order the correct knobs. Alternatively, you can order knobs with both standard and metric thread screws and return the unused set for a full refund.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCollimation screws on these telescopes are small with very fine threads. Knobs must be tightened gently (just enough to hold the secondary in place) to prevent damage to either the knob or secondary assembly.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIf your telescope has a rotary secondary cover, it must remain open when the knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSPECIAL NOTE: If your dust cover will not stay in place due to knob interference, contact us using the link below and we will send you knobs with a lower profile.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for C11 f\/10 with Flat Secondary Housing and Standard Threads","offer_id":44822523445477,"sku":"BOB-C11std","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B1. Knobs for C11 f\/10 with Flat Secondary Housing (non-Fastar) and Metric Threads","offer_id":44822523478245,"sku":"BOB-C11metBO","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B2. Knobs for C11 f\/10 with Flat Secondary Housing (NF) and Metric - Stainless Steel","offer_id":46855215120613,"sku":"BOB-C11SS","price":39.0,"currency_code":"CAD","in_stock":true},{"title":"C. Knobs for C11 f\/10  with Fastar and Standard Threads (NOT Edge HD)","offer_id":44822523511013,"sku":"BOB-C11stdfst","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"D. Knobs for C11 f\/10 with Fastar Secondary Housing and Metric Threads (Edge HD)","offer_id":44822523543781,"sku":"BOB-C11metfst","price":36.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/bob-s-knobs-for-celestron-11-sct-astronomy-plus-1.jpg?v=1715808170"},{"product_id":"bobs-knobs-for-meade-6-sct","title":"Bob's Knobs for Meade 6\" SCT","description":"\u003ch2\u003eBob's Knobs for Meade 6\" SCT\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe knobs below will fit all versions of the Meade 6” Schmidt-Cassegrain secondary. Price is for a complete set of knobs.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M6-6\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 6” (15 cm) f\/10 SCT versions (ETX-LS, LS-6 SC and ACF, LT-6 SC and ACF)\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnobs: Stainless steel, 12 mm (1\/2”) diameter\u003cbr\u003eThreads: Stainless steel\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNotes:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit properly with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAll Meade 6” f\/10 SCT have the 6-screw secondary. See our \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca href=\"http:\/\/bobsknobs.com\/faq\/faq.html\" title=\"FAQ\" target=\"self\"\u003eFAQ\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca href=\"http:\/\/bobsknobs.com\/page82\/index.html\" title=\"Literature\" target=\"self\"\u003etechnical paper\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e for additional information on installing Bob's Knobs on Meade telescopes with six factory secondary screws.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c!----\u003e","brand":"Bob's Knobs","offers":[{"title":"Default Title","offer_id":45709177749733,"sku":"BOB-M6-6","price":42.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_61602647-ec68-4d07-a232-56104dd8cc99.jpg?v=1777043363"},{"product_id":"bobs-knobs-for-meade-8-20-cm-sct","title":"Bob's Knobs for MEADE 8” (20 cm) SCT","description":"\u003ch2\u003eBob's Knobs for MEADE 8” (20 cm) SCT\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWe offer knobs for all versions of the Meade 8” f\/10 and f\/6.3 Schmidt-Cassegrain secondary, including those with three, four, and six secondary screws. (The extra screws on the four- and six-screw versions are for secondary disassembly, not collimation.) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSelect knobs for your telescope from the list below. \u003c\/span\u003e\u003cstrong\u003ePlease use care to select the correct knobs for your telescope. Each knob set is different and they are not interchangeable.\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003ePrice is for a complete set of knobs.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eA. Knobs for Meade 8” f\/10 with 3-Screw Secondary\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M8-3\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 8” (20 cm) f\/10 SCT versions with \u003cu\u003e\u003ca title=\"M8-3Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page110\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page110\/index.html\" target=\"self\"\u003ethree screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e (2080, LX5, LX10, LX50, LX90, LX100, LX200, others)\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover may contact the knobs when installed. We provide a set of spacers that attach to the inside of the dust cover to move it slightly away from the secondary assembly. You can also press the center of the cover from the inside to contour it for additional clearance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSome post-2004 Meade 8” telescopes have \u003c\/span\u003e\u003cspan\u003e\u003ca title=\"M8-4Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page111\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page111\/index.html\" target=\"self\"\u003efour screws\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e or \u003c\/span\u003e\u003cspan\u003e\u003ca title=\"M8-6Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page112\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page112\/index.html\" target=\"self\"\u003esix screws\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e on the secondary housing. The 4-screw and 6-screw secondary require different knobs (Items B and C below) Do not use knobs for the 3-screw secondary on the 4-screw or 6-screw secondary. The screws on 3-screw knobs are too short.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSome very early Meade 8” model 2080 telescopes have \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"M8-2Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page114\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page114\/index.html\" target=\"self\"\u003etwo collimation screws\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e. Please contact us using the link at the bottom of this page for knobs to fit this scope.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eB. Knobs for Meade 8” f\/10 with 4-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M8-4\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 8” (20 cm) f\/10 SCT versions with \u003cu\u003e\u003ca title=\"M8-4Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page111\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page111\/index.html\" target=\"self\"\u003efour screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e (LX90, LX200, others).\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\/Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eTwo sets of knobs, each with a different screw thread length, are included with your order. Use the thread length (measured below the white spacer) that matches the factory screw thread length.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover should fit normally with Bob's Knobs installed. If your dust cover contacts the knobs, we provide a set of spacers that attach to the inside of the dust cover to move it slightly away from the secondary assembly. Contact us for a free set. You can also press the center of the cover from the inside to contour it for additional clearance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePre-2005 Meade 8” telescopes have \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"M8-3Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page110\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page110\/index.html\" target=\"self\"\u003ethree screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e and no fourth screw on the side. The surface of the 3-screw secondary is textured, not smooth like the surface of the 4-screw secondary pictured. The 3-screw secondary requires different knobs (Item A above).\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eC. Knobs for Meade 8” f\/10 with 6-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M8-6\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 8” (20 cm) f\/10 SCT versions with \u003cu\u003e\u003ca title=\"M8-6Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page112\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page112\/index.html\" target=\"self\"\u003esix screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e (LX90, LX200, LX200ACF, LX200R, LS-8 SC and ACF, LT-8 SC and ACF, others). The inner screws are for collimation.\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 13 mm (1\/2”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover fits normally with Bob's Knobs installed on most versions. If your dust cover contacts the knobs, we provide a set of spacers that attach to the inside of the dust cover to move it slightly away from the secondary assembly. Contact us for a free set. You can also press the center of the cover from the inside to contour it for additional clearance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSee our \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"FAQ\" href=\"http:\/\/bobsknobs.com\/faq\/faq.html\" data-mce-href=\"http:\/\/bobsknobs.com\/faq\/faq.html\" target=\"self\"\u003eFAQ\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"Literature\" href=\"http:\/\/bobsknobs.com\/resources\/Literature\/M6screwinfo4.pdf\" data-mce-href=\"http:\/\/bobsknobs.com\/resources\/Literature\/M6screwinfo4.pdf\" target=\"self\"\u003etechnical paper\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e for additional information on installing Bob's Knobs on Meade telescopes with six factory secondary screws.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eYour user manual from Meade may claim that the outer secondary screws are for collimation adjustment. This is incorrect. The inner screws (with knobs in our photo) are collimation screws. The outer screws are for disassembling the secondary.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePre-2005 Meade 8” telescopes have \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"M8-3Factory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page110\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page110\/index.html\" target=\"self\"\u003ethree screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e. The 3-screw secondary requires different knobs (Item A above). Do not use knobs for the 6-screw secondary on the 3-screw secondary. The screws on the 6-screw knobs are too long.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e__________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eD. Knobs for Meade 8” f\/6.3 Widefield Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M8wf\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 8” (20 cm) f\/6.3 SCT versions (2080, LX6, LX10, LX50, LX100, LX200) which are marked \u003ca title=\"M8wfFactory\" href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page113\/index.html\" data-mce-href=\"http:\/\/bobsknobs.com\/SCT\/page34\/page113\/index.html\" target=\"self\"\u003ef\/6.3 WIDE-FIELD\u003c\/a\u003e (or a variation of this) on the corrector ring\u003cbr\u003e\u003cbr\u003eKnobs: Stainless steel, 12 mm (1\/2”) diameter\u003cbr\u003eThreads: Stainless steel\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eSince the factory dust cover contacts the secondary housing when installed, additional clearance is needed to make room for the knobs. We provide a set of spacers that attach to the inside of the dust cover to move it slightly away from the secondary assembly. You can also press the center of the cover from the inside to contour it for additional clearance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for Meade 8” f\/10 with 3-Screw Secondary","offer_id":45709234864357,"sku":"BOB-M8-3","price":28.0,"currency_code":"CAD","in_stock":true},{"title":"B. Knobs for Meade 8” f\/10 with 4-Screw Secondary","offer_id":45709234897125,"sku":"BOB-M8-4","price":28.0,"currency_code":"CAD","in_stock":true},{"title":"C. Knobs for Meade 8” f\/10 with 6-Screw Secondary","offer_id":45709234929893,"sku":"BOB-M8-6","price":28.0,"currency_code":"CAD","in_stock":true},{"title":"D. Knobs for Meade 8” f\/6.3 Widefield Secondary","offer_id":45709234962661,"sku":"BOB-M8wf","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/m8-3-2.jpg?v=1777043363"},{"product_id":"bobs-knobs-for-meade-10-25-cm-sct","title":"Bob's Knobs for MEADE 10” (25 cm) SCT","description":"\u003ch2\u003e\u003cspan\u003eBob's Knobs for MEADE 10” (25 cm) SCT\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWe offer knobs for all versions of the Meade 10” f\/10 and f\/6.3 Schmidt-Cassegrain secondary, including those with three and six secondary screws. (The extra screws on the six-screw version are for secondary disassembly, not collimation.).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e Select knobs for your telescope from the list below. \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePlease use care to select the correct knobs for your telescope. Each knob set is different and they are not interchangeable\u003c\/strong\u003e.\u003c\/span\u003e\u003cspan\u003e Price is for a complete set of knobs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eA. Knobs for Meade 10” f\/10 with 3-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M10-3\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 10” (25 cm) f\/10 SCT versions with \u003cu\u003e\u003ca title=\"M10-3Factory\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page115\/index.html\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page115\/index.html\" target=\"self\"\u003ethree screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e (2120, LX10, LX50, LX90, LX100, LX200, others)\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSome post-2004 Meade 10” telescopes have \u003c\/span\u003e\u003cspan\u003e\u003ca title=\"M10-6Factory\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page116\/index.html\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page116\/index.html\" target=\"self\"\u003esix screws\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e on the secondary housing. The 6-screw secondary requires different knobs (Item B below) Do not use knobs for the 3-screw secondary on the 6-screw secondary. The screws on 3-screw knobs are too short.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\u003cspan\u003eB. Knobs for Meade 10” f\/8 and f\/10 with 6-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M10-6\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 10” (25 cm) f\/8 and f\/10 SCT versions with \u003cu\u003e\u003ca title=\"M10-6Factory\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page116\/index.html\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page116\/index.html\" target=\"self\"\u003esix screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e (LX90, LX200, LX200ACF, LX200R, others). The inner screws are for collimation.\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit normally with Bob's Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSee our \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"FAQ\" href=\"http:\/\/www.bobsknobs.com\/faq\/faq.html\" data-mce-href=\"http:\/\/www.bobsknobs.com\/faq\/faq.html\" target=\"self\"\u003eFAQ\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"Literature\" href=\"http:\/\/www.bobsknobs.com\/resources\/Literature\/M6screwinfo4.pdf\" data-mce-href=\"http:\/\/www.bobsknobs.com\/resources\/Literature\/M6screwinfo4.pdf\" target=\"self\"\u003etechnical paper\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e for additional information on installing Bob's Knobs on Meade telescopes with six factory secondary screws.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePre-2005 Meade 10” telescopes have \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca title=\"M10-3Factory\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page115\/index.html\" data-mce-href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page115\/index.html\" target=\"self\"\u003ethree screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e. The 3-screw secondary requires different knobs (Item A above). Do not use knobs for the 6-screw secondary on the 3-screw secondary. The screws on the 6-screw knobs are too long.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eC. Knobs for Meade 10” f\/6.3 Widefield Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M10wf\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 10 inch (25 cm) f\/6.3 SCT versions (2120, LX10, LX50, LX100, LX200) which are marked \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page35\/page117\/index.html\" title=\"M10wfFactory\" target=\"self\"\u003ef\/6.3 WIDE-FIELD\u003c\/a\u003e on the corrector ring (Meade 8” f\/6.3 is shown in the link)\u003cbr\u003e\u003cbr\u003eKnobs: Stainless steel, 12 mm (1\/2”) diameter\u003cbr\u003eThreads: Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eSince the factory dust cover contacts the secondary housing when installed, additional clearance is needed to make room for the knobs. We provide a set of spacers that attach to the inside of the dust cover to move it slightly away from the secondary assembly. You can also press the center of the cover from the inside to contour it for additional clearance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for Meade 10” f\/10 with 3-Screw Secondary","offer_id":45709316948197,"sku":"BOB-M10-3","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B. Knobs for Meade 10” f\/8 and f\/10 with 6-Screw Secondary","offer_id":45709316980965,"sku":"BOB-M10-6","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"C. Knobs for Meade 10” f\/6.3 Widefield Secondary","offer_id":45709317013733,"sku":"BOB-M10wf","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/m10-3-2.jpg?v=1777043364"},{"product_id":"bobs-knobs-for-meade-12-30-cm-sct","title":"Bob's knobs for MEADE 12” (30 cm) SCT","description":"\u003ch2\u003eBob's knobs for MEADE 12” (30 cm) SCT\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWe offer knobs for all versions of the Meade 12” f\/10 and f\/8 Schmidt-Cassegrain secondary, including those with three, four, and six secondary screws. (The extra screws on the four- and six-screw versions are for secondary disassembly, not collimation.) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSelect knobs for your telescope from the list below. \u003c\/span\u003e\u003cstrong\u003ePlease use care to select the correct knobs for your telescope. Each knob set is different and they are not interchangeable.\u003c\/strong\u003e\u003cspan\u003e Price is for a complete set of knobs.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eA. Knobs for Meade 12” f\/10 with 3-Screw or 4-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M12-3\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 12” (30 cm) f\/10 SCT versions with \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page30\/page118\/index.html\" title=\"M12-3Factory\" target=\"self\"\u003ethree screws\u003c\/a\u003e or \u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page30\/page120\/index.html\" title=\"M12-4Factory\" target=\"self\"\u003efour screws\u003c\/a\u003e\u003c\/u\u003e on the secondary housing (LX200, ACF f\/10, others)\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit properly with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIf your secondary housing has a \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page30\/page120\/index.html\" title=\"M12-4Factory\" target=\"self\"\u003efourth screw on the side\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e, it is for secondary disassembly and is not used for collimation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eB. Knobs for Meade 12” f\/8 with 6-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M12-6f8\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 12” (30 cm) f\/8 SCT versions with \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page30\/page119\/index.html\" title=\"M12f8-6Factory\" target=\"self\"\u003esix screws on the secondary housing\u003c\/a\u003e (LX600, LX850, ACF f\/8 versions)\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit properly with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInstallation may require removing the secondary from the OTA. See our \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/resources\/Literature\/M6screwinfo4.pdf\"\u003etechnical paper\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e for details.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for Meade 12” f\/10 with 3-Screw or 4-Screw Secondary","offer_id":45709360300261,"sku":"BOB-M12-3","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B. Knobs for Meade 12” f\/8 with 6-Screw Secondary","offer_id":45709360333029,"sku":"BOB-M12-6f8","price":32.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/m12-3-2.jpg?v=1777043365"},{"product_id":"bobs-knobs-for-meade-14-36-cm-sct","title":"Bob's Knobs for MEADE 14” (36 cm) SCT","description":"\u003ch2\u003eBob's Knobs for MEADE 14” (36 cm) SCT\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWe offer knobs for the Meade 14” f\/10 (\u003c\/span\u003e\u003cspan\u003eItem A\u003c\/span\u003e\u003cspan\u003e) and f\/8 (\u003c\/span\u003e\u003cspan\u003eItem B\u003c\/span\u003e\u003cspan\u003e) Schmidt-Cassegrain secondary with exposed collimation screws. These telescopes have six secondary screws. The three inner screws are for collimation. The three outer screws are for secondary disassembly, not collimation. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe do not offer knobs for the very early Meade 14” f\/10 Schmidt-Cassegrain telescope with recessed factory collimation screws \u003cstrong\u003e(\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eItem C). Please use care to select the correct knobs for your telescope. Each knob set is different and they are not interchangeable.\u003c\/strong\u003e\u003cspan\u003e Price is for a complete set of knobs.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eA. Knobs for Meade 14” f\/10 with 6-Screw Secondary and Exposed Factory Collimation Screws\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M14-6e\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 14” (36 cm) f\/10 SCT versions with 6-screw secondary and  \u003cu\u003e\u003ca title=\"M14-6eFactory\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page31\/page121\/index.html\" target=\"self\"\u003eexposed factory collimation screws\u003c\/a\u003e\u003c\/u\u003e (Includes LX200ACF, LX600, LX850)\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThese knobs are for the f\/10 version only. See Item B (below) for f\/8 knobs.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit properly with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInstallation may require removing the secondary from the OTA. See our \u003c\/span\u003e\u003cspan\u003etechnical paper\u003c\/span\u003e\u003cspan\u003e for details.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eB. Knobs for Meade 14” f\/8 with 6-Screw Secondary and Exposed Factory Collimation Screws\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M14-6f8\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 14” (36 cm) f\/8 SCT versions with 6-screw secondary and  \u003cu\u003e\u003ca title=\"M14-6eFactory\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page31\/page121\/index.html\" target=\"self\"\u003eexposed factory collimation screws\u003c\/a\u003e\u003c\/u\u003e (Includes LX200ACF, LX600, LX850)\u003cbr\u003e\u003cbr\u003eKnobs: Black plastic, 16 mm (5\/8”) diameter\u003cbr\u003eThreads: Black anodized aluminum alloy\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThese knobs are for the f\/8 version only. See Item A (above) for f\/10 knobs.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit properly with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInstallation may require removing the secondary from the OTA. See our \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/resources\/Literature\/M6screwinfo4.pdf\"\u003etechnical paper\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e for details..\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eC. Meade 14” f\/10 with 6-Screw Secondary and Recessed Factory Collimation Screws\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cdiv id=\"container\"\u003e\n\u003cdiv id=\"contentContainer\"\u003e\n\u003cdiv id=\"content\"\u003eEarly Meade 14” f\/10 SCTs have\u003cspan\u003e \u003c\/span\u003e\u003ca title=\"M14-6RecessedFactory\" href=\"http:\/\/www.bobsknobs.com\/SCT\/page31\/page122\/index.html\"\u003erecessed collimation screws\u003c\/a\u003e, as shown in the photograph. These headless set screws are located near the perimeter of the secondary and are accessed through notches in the cover plate.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWe do not offer knobs for these scopes because they would be in the light path.\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clearer\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"footer\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg height=\"312\" width=\"312\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/m14-6recessed-2.jpg?v=1717784261\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for Meade 14” f\/10 with 6-Screw Secondary and Exposed Factory Collimation Screws","offer_id":45709527777509,"sku":"BOB-M14-6e","price":32.0,"currency_code":"CAD","in_stock":true},{"title":"B. Knobs for Meade 14” f\/8 with 6-Screw Secondary and Exposed Factory Collimation Screws","offer_id":45709527810277,"sku":"BOB-M14-6f8","price":32.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/m14-6e-2.jpg?v=1777043366"},{"product_id":"bobs-knobs-meade-16-41-cm-sct","title":"Bob's Knobs for MEADE 16” (41 cm) SCT","description":"\u003ch2\u003eBob's Knobs for MEADE 16” (41 cm) SCT\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWe offer knobs for all versions of the Meade 16” f\/10 Schmidt-Cassegrain secondary, including those with three and six secondary screws. (The extra screws on the six-screw version are for secondary disassembly, not collimation.) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSelect knobs for your telescope from the list below. \u003c\/span\u003e\u003cstrong\u003ePlease use care to select the correct knobs for your telescope. Each knob set is different and they are not interchangeable.\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003ePrice is for a complete set of knobs.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eA. Knobs for Meade 16” f\/10 with 3-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M16-3\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 16” (41 cm) f\/10 SCT versions with \u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page32\/page123\/index.html\" title=\"M16-3Factory\" target=\"self\"\u003ethree screws on the secondary housing\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eKnobs: Stainless steel, 19 mm (3\/4”) diameter\u003cbr\u003eThreads: Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eLater Meade 16” telescopes have \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page32\/page124\/index.html\" title=\"M16-6Factory\" target=\"self\"\u003esix screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e. These scopes require different knobs (Item B below). Do not use knobs for the 3-screw secondary on the 6-screw secondary. The screws on the 3-screw knobs are too long.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003e_______________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eB. Knobs for Meade 16” f\/8 ACF and f\/10 with 6-Screw Secondary\u003cbr\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e M16-6\u003cbr\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Meade 16” (41 cm) f\/8 and f\/10 SCT versions with \u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page32\/page124\/index.html\" title=\"M16-6Factory\" target=\"self\"\u003esix screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e. (Includes LX200ACF, LX800) The inner screws are for collimation.\u003cbr\u003e\u003cbr\u003eKnobs: Stainless steel, 19 mm (3\/4”) diameter\u003cbr\u003eThreads: Stainless steel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col class=\"arabic-numbers\"\u003e\n\u003cli\u003e\u003cspan\u003eThe factory dust cover will fit normally with Bob’s Knobs installed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eInstallation may require removing the secondary from the OTA. See our \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/resources\/Literature\/M6screwinfo4.pdf\"\u003etechnical paper\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e for details.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEarlier Meade 16 inch (41 cm) telescopes have \u003c\/span\u003e\u003cspan\u003e\u003cu\u003e\u003ca href=\"http:\/\/www.bobsknobs.com\/SCT\/page32\/page123\/index.html\" title=\"M16-3Factory\" target=\"self\"\u003ethree screws on the secondary housing\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e\u003cspan\u003e. These scopes require different knobs (Item A above). Do not use knobs for the 6-screw secondary on the 3-screw secondary. The screws on the 6-screw knobs are too short.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn Allen wrench for removing the factory collimation screws is included with your order.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Bob's Knobs","offers":[{"title":"A. Knobs for Meade 16” f\/10 with 3-Screw Secondary","offer_id":45709546422501,"sku":"BOB-M16-3","price":56.0,"currency_code":"CAD","in_stock":true},{"title":"B. Knobs for Meade 16” f\/8 ACF and f\/10 with 6-Screw Secondary","offer_id":45709546455269,"sku":"BOB-M16-6","price":56.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/m16-3-2.jpg?v=1777043366"},{"product_id":"baader-laser-collimator-colli-mark-iii-laser","title":"Baader Laser Collimator \"Colli\" - Mark III (LASER)","description":"\u003ch2\u003eBaader Laser Collimator \"Colli\" - Mark III\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLaser-Collimator for easy collimation of your telescope in 1-2 minutes\u003c\/li\u003e\n\u003cli\u003eHigh-quality, impact-resistant and highly accurate laser, with concealed setscrews\u003c\/li\u003e\n\u003cli\u003ePrecision-machined, hard-anodized barrel instead of the less accurate 1¼\" chrome barrel\u003c\/li\u003e\n\u003cli\u003eHandle protector made of silicone rubber facilitates handling with gloves\u003c\/li\u003e\n\u003cli\u003eSuitable for Newton and SC telescopes, instructions included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBaader Planetarium has added a unique innovation to the laser collimator. The Laser Colli incorporates a viewable etched viewing plate which can be seen through the back of the laser collimator. This permits collimation of SCTs and small diameter closed tube Newtonians, instruments that were difficult or impossible to collimate using a conventional single beam laser collimator.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eEach collimator is individually lathe aligned for accurate collimation. The one-piece die-cast and machined aluminum housing guarantees a stable alignment. The compact size and lightweight make the Laser Colli an indispensable tool that is handy to keep in anyone's eyepiece box (thought we doubt too many will find use as a keychain..).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications \u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\" style=\"width: 99.9029%; height: 117.614px;\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\" style=\"height: 19.6023px;\"\u003e\n\u003cth class=\"label\" style=\"width: 55.0187%; height: 19.6023px;\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\" style=\"width: 42.0466%; height: 19.6023px;\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" style=\"height: 19.6023px;\"\u003e\n\u003cth class=\"label\" style=\"width: 55.0187%; height: 19.6023px;\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\" style=\"width: 42.0466%; height: 19.6023px;\"\u003e2450343\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" style=\"height: 19.6023px;\"\u003e\n\u003cth class=\"label\" style=\"width: 55.0187%; height: 19.6023px;\"\u003eWEIGHT (NETTO)\u003c\/th\u003e\n\u003ctd class=\"data last\" style=\"width: 42.0466%; height: 19.6023px;\"\u003e0.146\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\" style=\"height: 19.6023px;\"\u003e\n\u003cth class=\"label\" style=\"width: 55.0187%; height: 19.6023px;\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\" style=\"width: 42.0466%; height: 19.6023px;\"\u003e4047825101358\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\" style=\"height: 19.6023px;\"\u003e\n\u003cth class=\"label\" style=\"width: 55.0187%; height: 19.6023px;\"\u003eOUTER CONNECTION (LENS SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\" style=\"width: 42.0466%; height: 19.6023px;\"\u003eBarrel, 1¼\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last even\" style=\"height: 19.6023px;\"\u003e\n\u003cth class=\"label\" style=\"width: 55.0187%; height: 19.6023px;\"\u003eCOMPATIBLE TELESCOPES\u003c\/th\u003e\n\u003ctd class=\"data last\" style=\"width: 42.0466%; height: 19.6023px;\"\u003eSchmidt-Cassegrain, Newton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLaser Collimator \"Colli\" - Mark III\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"Adjustment (Collimation) of Newtonian Telescopes with the help of the LASER-COLLI MARK III\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/adjustment_collimation_of_newtonian_telescopes_with_the_help_of_the_laser_colli_mark_iii.pdf?v=1612095411\" target=\"_blank\"\u003eAdjustment (Collimation) of Newtonian Telescopes with the help of the LASER-COLLI MARK III\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Testreview Astronomy Technology Today June 2014 - Imaging with the Baader MPCC Mark III and LaserColli - A. Grant\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_astronomy_technology_today_june_2014_imaging_with_the_baader_mpcc_mark_iii_and_lasercolli_a_grant_1.pdf?v=1612095410\" target=\"_blank\"\u003eTestreview Astronomy Technology Today June 2014 - Imaging with the Baader MPCC Mark III and LaserColli - A. Grant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Baader LaserColli Mark III - Group Test Winner\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_lasercolli_mark_iii_group_test_winner.pdf?v=1612095410\" target=\"_blank\"\u003eBaader LaserColli Mark III - Group Test Winner\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":45872656974053,"sku":"BAA-LASER (Baader #2450343)","price":143.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_3326f1f2-6df5-451f-a75c-caec9d8186b5.png?v=1777044954"},{"product_id":"starfield-deluxe-laser-collimator-lc","title":"Starfield Deluxe Laser Collimator (LC)","description":"\u003ch1\u003eStarfield Deluxe Laser Collimator\u003c\/h1\u003e\n\u003cp\u003eThe Starfield Deluxe Newtonian laser collimator has a long 1.25\" barrel and a machined rim for proper alignment.\u003c\/p\u003e\n\u003cp\u003eUsing the laser collimator makes correct collimating of a Newtonian\/Dobsonian telescope simple.. Collimation is completed within a very short time at the observing site in the dark, without any additional accessories being required. Precisely manufactured, it sits snugly in the focuser in the optical axis.\u003c\/p\u003e\n\u003cp\u003eCNC machined, the 45° angled viewing port for easier viewing from the rear of the telescope. The matte projection area allows lateral detection of the reflection and makes main mirror collimation easy - even with large telescopes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFactory set, using three recessed screws located on this 1.25\" Laser Collimator's body, it is important that these settings are not adjusted or your collimator will not work as intended. Powered via three included LR44 lithium batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDeluxe Laser Collimator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/starfield-warranty?_pos=4\u0026amp;_sid=2afe9b2b3\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003eStarfield Limited 1 year Warranty\u003c\/a\u003e\u003c\/p\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":46533019336933,"sku":"SF-LC","price":90.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2_da48027c-9c39-47ad-bb48-335e84826bbe.png?v=1777045178"},{"product_id":"astronomy-plus-1-25-cheshire-collimator-ta12","title":"Astronomy Plus 1.25\" Cheshire Collimator (TA12)","description":"\u003ch1\u003eAstronomy Plus 1.25\" Cheshire Collimator\u003c\/h1\u003e\n\u003cp\u003eA Cheshire collimating eyepiece is a precision tool used to align the optical elements of a telescope, ensuring sharp and accurate views.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIt is particularly useful for Newtonian telescopes, where it helps align the primary and secondary mirrors, and can also aid in verifying collimation in Schmidt-Cassegrain telescopes. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBy using a sight tube, a central peephole, and a crosshair, it allows users to fine-tune mirror alignment without relying on external light sources.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003ctable cellspacing=\"0\" border=\"0\"\u003e\n\u003ccolgroup span=\"2\" width=\"85\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd height=\"17\" align=\"center\"\u003eFitting\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e1.25’’\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e1.25\" Cheshire Collimator (TA12)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/istronomyplus.com\/products\/astronomy-plus-usb-dew-heater?_pos=5\u0026amp;_sid=79711b5af\u0026amp;_ss=r\" target=\"_blank\" rel=\"noopener\"\u003e1-Year Astronomy Plus Warranty\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Astronomy Plus","offers":[{"title":"Default Title","offer_id":46585967608037,"sku":"AP-TA12","price":26.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/IMG_20250313_135939_450.jpg?v=1777043594"},{"product_id":"ocal-4-0-electronic-collimator-ec-v4","title":"OCAL Electronic Collimator 4.0 (EC-V4)","description":"\u003ch1\u003eOCAL Electronic Collimator 4.0\u003c\/h1\u003e\n\u003cp data-start=\"264\" data-end=\"684\" class=\"\"\u003eThe OCAL Electronic Collimator 4.0 is a precision alignment tool designed for astrophotographers and telescope users who demand accurate collimation, especially with short focal length optical systems and high-resolution imaging sensors with extremely small pixels. This latest generation introduces a series of innovations that improve image quality, usability, and alignment precision—all while reducing size and cost.\u003c\/p\u003e\n\u003ch2 data-start=\"686\" data-end=\"708\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"710\" data-end=\"2548\"\u003e\n\u003cli data-start=\"710\" data-end=\"1022\" class=\"\"\u003e\n\u003cp data-start=\"712\" data-end=\"1022\" class=\"\"\u003e\u003cstrong data-start=\"712\" data-end=\"744\"\u003eAdvanced Imaging Performance\u003c\/strong\u003e\u003cbr data-start=\"744\" data-end=\"747\"\u003eFeaturing high-resolution CMOS technology, the OCAL 4.0 delivers sharp, clear visuals for precision collimation. The updated 4:3 aspect ratio provides a wider and more effective view of the telescope’s internal structure, allowing for easier and more intuitive adjustments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1024\" data-end=\"1362\" class=\"\"\u003e\n\u003cp data-start=\"1026\" data-end=\"1362\" class=\"\"\u003e\u003cstrong data-start=\"1026\" data-end=\"1062\"\u003eMotorized Linear Sensor Movement\u003c\/strong\u003e\u003cbr data-start=\"1062\" data-end=\"1065\"\u003eEach unit includes an internal motor that enables linear movement of the imaging chip. This allows for fine-tuned focus control via the included software during the collimation process, ensuring each optical element can be precisely aligned without disrupting the imaging setup or optical train.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1364\" data-end=\"1693\" class=\"\"\u003e\n\u003cp data-start=\"1366\" data-end=\"1482\" class=\"\"\u003e\u003cstrong data-start=\"1366\" data-end=\"1400\"\u003eInteractive Alignment Software\u003c\/strong\u003e\u003cbr data-start=\"1400\" data-end=\"1403\"\u003eThe companion software enhances functionality with real-time tools including:\u003c\/p\u003e\n\u003cul data-start=\"1485\" data-end=\"1693\"\u003e\n\u003cli data-start=\"1485\" data-end=\"1523\" class=\"\"\u003e\n\u003cp data-start=\"1487\" data-end=\"1523\" class=\"\"\u003eAdjustable colored centering circles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1526\" data-end=\"1581\" class=\"\"\u003e\n\u003cp data-start=\"1528\" data-end=\"1581\" class=\"\"\u003eControl over circle thickness, contrast, and exposure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1584\" data-end=\"1693\" class=\"\"\u003e\n\u003cp data-start=\"1586\" data-end=\"1693\" class=\"\"\u003eA rotatable crosshair for assessing concentric alignment and the orientation of the secondary mirror spider\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1695\" data-end=\"1957\" class=\"\"\u003e\n\u003cp data-start=\"1697\" data-end=\"1957\" class=\"\"\u003e\u003cstrong data-start=\"1697\" data-end=\"1729\"\u003eStable, Compact Construction\u003c\/strong\u003e\u003cbr data-start=\"1729\" data-end=\"1732\"\u003eBuilt using the same 3A processing and high-precision assembly as the previous generation, the OCAL 4.0 is more compact and lightweight—minimizing sensitivity to minor impacts and maintaining calibration accuracy over time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1959\" data-end=\"2127\" class=\"\"\u003e\n\u003cp data-start=\"1961\" data-end=\"2127\" class=\"\"\u003e\u003cstrong data-start=\"1961\" data-end=\"1988\"\u003eRefined Exterior Design\u003c\/strong\u003e\u003cbr data-start=\"1988\" data-end=\"1991\"\u003eA red housing with clearly marked reference rings makes it easier to identify the reflective surface and align components efficiently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2129\" data-end=\"2324\" class=\"\"\u003e\n\u003cp data-start=\"2131\" data-end=\"2324\" class=\"\"\u003e\u003cstrong data-start=\"2131\" data-end=\"2169\"\u003eOptimized for Cost and Performance\u003c\/strong\u003e\u003cbr data-start=\"2169\" data-end=\"2172\"\u003eStreamlined production and component design reduce the retail price while preserving high-end performance—offering excellent value without compromise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2326\" data-end=\"2548\" class=\"\"\u003e\n\u003cp data-start=\"2328\" data-end=\"2548\" class=\"\"\u003e\u003cstrong data-start=\"2328\" data-end=\"2349\"\u003eQuality Assurance\u003c\/strong\u003e\u003cbr data-start=\"2349\" data-end=\"2352\"\u003eEach unit is individually tested by the supplier prior to delivery. A quality inspection seal is affixed to confirm successful testing and calibration. Users are advised not to remove this seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2550\" data-end=\"2553\" class=\"\"\u003e\n\u003cp data-start=\"2555\" data-end=\"2862\" class=\"\"\u003eThe OCAL Electronic Collimator 4.0 is ideal for Newtonian, SC, CDK, and RC telescopes, offering a powerful combination of accuracy, durability, and ease of use. Suitable for both amateur and professional applications, it provides a modern, software-enhanced solution for achieving perfect optical alignment.\u003c\/p\u003e\n\u003ch3 lang=\"en-US\" class=\"western\" align=\"left\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable data-start=\"55\" data-end=\"857\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"55\" data-end=\"134\"\u003e\n\u003ctr data-start=\"55\" data-end=\"134\"\u003e\n\u003cth data-start=\"55\" data-end=\"82\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"57\" data-end=\"69\"\u003eCategory\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth data-start=\"82\" data-end=\"134\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"84\" data-end=\"101\"\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"215\" data-end=\"857\"\u003e\n\u003ctr data-start=\"215\" data-end=\"294\"\u003e\n\u003ctd data-start=\"215\" data-end=\"242\" data-col-size=\"sm\"\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"242\" data-end=\"294\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"295\" data-end=\"374\"\u003e\n\u003ctd data-start=\"295\" data-end=\"331\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"297\" data-end=\"330\"\u003eConnection (to the telescope)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"331\" data-end=\"374\"\u003eT2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"375\" data-end=\"455\"\u003e\n\u003ctd data-start=\"375\" data-end=\"409\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"377\" data-end=\"408\"\u003eSupported operating systems\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"409\" data-end=\"455\"\u003eWindows 7+, Android\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"456\" data-end=\"537\"\u003e\n\u003ctd data-start=\"456\" data-end=\"489\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"458\" data-end=\"488\"\u003eAppropriate for telescopes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"489\" data-end=\"537\"\u003eNewton, SC, CDK \u0026amp; RC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"538\" data-end=\"617\"\u003e\n\u003ctd data-start=\"538\" data-end=\"565\" data-col-size=\"sm\"\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"565\" data-end=\"617\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"618\" data-end=\"697\"\u003e\n\u003ctd data-start=\"618\" data-end=\"645\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"620\" data-end=\"628\"\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"645\" data-end=\"697\"\u003eAlignment accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"698\" data-end=\"777\"\u003e\n\u003ctd data-start=\"698\" data-end=\"725\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"700\" data-end=\"717\"\u003eType of build\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"725\" data-end=\"777\"\u003eCollimators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"778\" data-end=\"857\"\u003e\n\u003ctd data-start=\"778\" data-end=\"805\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"780\" data-end=\"794\"\u003eWeight (g)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"805\" data-end=\"857\"\u003e134\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eOCAL Collimators Features Comparison\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eProduct Model\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eShell Color\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eLens Aperture\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eClarity\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eImage Quality\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003e3A Assembly Process\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eSmall\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003ctd\u003eBig\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.0MAX\u003c\/td\u003e\n\u003ctd\u003eBlue-green\u003c\/td\u003e\n\u003ctd\u003eBig\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eOrdinary\u003c\/td\u003e\n\u003ctd\u003eBig\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eBig\u003c\/td\u003e\n\u003ctd\u003eBig\u003c\/td\u003e\n\u003ctd\u003eBig\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOCAL Colliamtor\u003c\/li\u003e\n\u003cli\u003e1.25\" Nosepiece\u003c\/li\u003e\n\u003cli\u003eUSB-A to USB-C Adapter\u003c\/li\u003e\n\u003cli\u003eUSB-A to USB-C Cable\u003c\/li\u003e\n\u003cli\u003eAdapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e OCAL's warranty\u003c\/p\u003e","brand":"OCAL","offers":[{"title":"Default Title","offer_id":46778648264933,"sku":"OCAL-EC-V4","price":345.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/OCAL4-4.webp?v=1747850226"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/collections\/collimation-tools-astronomy-plus.webp?v=1715807890","url":"https:\/\/istronomyplus.com\/collections\/collimation-tools.oembed","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}