{"title":"OCAL World","description":"\u003ch3 data-start=\"88\" data-end=\"128\"\u003e\u003cstrong data-start=\"92\" data-end=\"128\"\u003eOCAL Telescope Collimation Tools\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"130\" data-end=\"437\"\u003e\u003cstrong data-start=\"130\" data-end=\"171\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eOCAL\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e develops electronic collimation cameras designed to make telescope alignment faster, more accurate, and easier to visualize. Ideal for Newtonian and other reflector telescopes, OCAL tools provide precise on-screen guidance for achieving optimal optical performance.\u003c\/p\u003e","products":[{"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"},{"product_id":"ocal-h-2-newtonian-206mm-f2-72-astrograph","title":"OCAL H-2 Newtonian 206mm F2.72 Astrograph","description":"\u003ch1\u003eOCAL H-2 Newtonian 206mm F2.72 Astrograph\u003c\/h1\u003e\n\u003cp\u003eOCAL H-2 is a Newtonian reflecting astronomical telescope developed specifically for astronomical photography. Its model is H-206, with a primary mirror aperture of 206mm and a focal ratio of F2.72. A focal length of about 560mm can cover the shooting of most celestial bodies and present the fine details of celestial bodies.\u003c\/p\u003e\n\u003cp\u003eTo achieve excellent optical performance at a small focal ratio, it has been carefully designed in both optical and mechanical aspects. With an excellent optical system design, and strict detection by optical equipment such as interferometers and eccentric meters, the quality of the lenses is ensured to be top - notch. The mechanical positioning design of the main mirror, the precise fine - tuning design of the secondary mirror, the focusing base design, and the micro - heating dew removal design of the optical system comprehensively guarantee the shooting effect. \u003c\/p\u003e\n\u003cp\u003e When you purchase the OCAL H - 2you will get a complete set of equipment: One set of telescope main body, including components such as a Telescope Tube clamp, dovetail plate, focuser, and correctors.\u003c\/p\u003e\n\u003cp\u003eOne copy of a simple product introduction. OCAL anti - dew system. Several screwdrivers and hex wrenches for telescope adjustment. Several data cables and DC wires. One matching aluminum case with wheels. \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Capture_d_ecran_2026-01-10_135334_1024x1024.png?v=1768071228\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eFused Silica Glass Substrate\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Capture_d_ecran_2026-01-10_135825_1024x1024.png?v=1768071521\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eLarge-diameter correctors and dedicated 2.5-inch focusing base support full-frame shooting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Capture_d_ecran_2026-01-10_141109_1024x1024.png?v=1768072283\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eDehumidification device prevents condensation on the lens by real-time detection of temperature and humidity\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Capture_d_ecran_2026-01-10_140013_1024x1024.png?v=1768071629\" alt=\"\" style=\"float: none;\"\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSecondary mirror precision adjustment structure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Capture_d_ecran_2026-01-10_140108_1024x1024.png?v=1768071680\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary mirror Position Fixing and Primary mirror Adjustment Screws\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Capture_d_ecran_2026-01-10_141436_1024x1024.png?v=1768072487\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eMarkings on the Primary Mirror and Secondary Mirror\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Capture_d_ecran_2026-01-10_141521_1024x1024.png?v=1768072534\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional Production and Detection Equipment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/19_d28cf6aa-04ea-482c-893b-64e92aea516f_1024x1024.png?v=1768072577\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp class=\"img-p\"\u003e\u003cstrong\u003eParameters: Camera 2600MC, single exposure 300S, Environment: Class 4 light pollution\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eOCALH-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e560 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture – Focal Ratio\u003c\/td\u003e\n\u003ctd\u003eD: 206 mm, F2.72\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinor Axis of Secondary Mirror\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGood Image Area\u003c\/td\u003e\n\u003ctd\u003e44 mm full-frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubstrate Material of Primary and Secondary Mirrors\u003c\/td\u003e\n\u003ctd\u003eFused silica glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShapes of Primary and Secondary Mirrors\u003c\/td\u003e\n\u003ctd\u003eHyperboloid, Plane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrecting Lens\u003c\/td\u003e\n\u003ctd\u003e4-element apochromatic lenses, one of which is super ED glass. The clear aperture is 56 mm, with M48×0.75 and M54×0.75 adapter rings attached. The back-focus distance is 55 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2.5-inch dual-speed focusing base, connected to the correcting lens by threads integrated with a dedicated bearing rotator (CAA) and an angle scale. It rotates smoothly without resistance and is equipped with a focal-plane adjustment device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Body Material\u003c\/td\u003e\n\u003ctd\u003eCarbon fiber, 4 mm thick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Wall of Telescope Tube\u003c\/td\u003e\n\u003ctd\u003eCoated with special anti-reflection paint from German Noctutec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping Hoop\u003c\/td\u003e\n\u003ctd\u003eMade of aluminum alloy by CNC cutting, 10 mm thick, 22 mm wide, with an inner diameter of 254 mm and 10 groups of M6 threaded assembly holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eLength 630 mm, tube diameter 254 mm, maximum distance between the two dovetail plates 340 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eBare weight of the complete telescope set is 12.7 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisual Accessories\u003c\/td\u003e\n\u003ctd\u003eNot configured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2_4b419b1c-0e44-4bda-8dab-6c2220976bec_1024x1024.png?v=1768072359\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOCAL H-2 Newtonian 206mm F2.72 Astrograph\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eOCAL's warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/OCAL_H-2manual.pdf?v=1768074039\" target=\"_blank\"\u003eUser Manual \u003c\/a\u003e\u003c\/p\u003e","brand":"OCAL","offers":[{"title":"Default Title","offer_id":48246144532709,"sku":"OCAL-H-2","price":7564.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/a_c01cbeee-2805-4b84-8f0e-eacd96cd7dd4.png?v=1777045216"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/collections\/ocal-world-astronomy-plus_07ccfada-77be-4e8a-a37c-2aaae680d70a.png?v=1715807933","url":"https:\/\/istronomyplus.com\/collections\/ocal-world.oembed","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}