{"product_id":"william-optics-new-minicat-51-f-3-5-wifd-t-c-mini-rd","title":"William Optics MiniCat 51 f\/3.5 WIFD (T-C-MINI-RD)","description":"\u003ch1\u003eWilliam Optics MiniCat 51 f\/3.5 WIFD\u003c\/h1\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eDesigned for photography enthusiasts who love wide-angle views. Its standout feature is an ultra-bright f\/3.5 aperture, allowing you to capture faint nebulae or comets in a very short time. (The f\/3.5 aperture lets in twice as much light as an f\/5 aperture.)\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe MiniCat uses the latest Petzval design with 6 lens elements, including 2 Super ED and lanthanum lenses to perfectly control chromatic aberration. It’s currently the only high-quality, short focal length 178mm f\/3.5 astrograph telescope available on the market.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe MiniCat holds three unique patents, ensuring easy and perfect focusing along with coaxial image quality to prevent drawtube tilt issues caused by optical misalignment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv id=\"description\" class=\"\"\u003e\n\u003cp dir=\"ltr\"\u003eFor perfectionists in astrophotography, we recommend using BXT software after stacking your images to achieve flawless correction of peripheral star points.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/williamoptics.com\/products\/minicat-51-wifd?srsltid=AfmBOoqMJNrBTR5oLt9OzMCFX-Q2CkeKdrzfUfx8riv6nsMjmxFYQ9Yv#shopify-section-template--18300028387545__before_after_NfE4EE\"\u003eView B\u0026amp;A\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003ePlease Note: Unlike other RedCat models, the MiniCat 51 Refractor \u003cu\u003edoes not\u003c\/u\u003e come with a built-in filter drawer.\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"multi-column__item  snap-center group\"\u003e\n\u003cdiv class=\"prose text-start\"\u003e\n\u003ch2 class=\"h2\"\u003eUltraFast Petzval\u003c\/h2\u003e\n\u003cp\u003eThe innovative 6-element Petzval design boosts traditional Cat telescopes' efficiency with a cutting-edge optical system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"multi-column__item  snap-center group\"\u003e\n\u003cdiv class=\"prose text-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/minicat-lens.13.webp?v=1729697100\" width=\"568\" height=\"319\"\u003e\u003c\/h3\u003e\n\u003ch2\u003e\u003cspan\u003eExtra-low Dispersion (ED) glasses\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"multi-column__item  snap-center group\"\u003e\n\u003cdiv class=\"prose text-start\"\u003e\n\u003cp\u003eContains 2\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSuper ED glasses\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003elanthanum lenses\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith advanced\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efully multi-coated\u003c\/strong\u003e, delivering sharp, vibrant images with true-to-life colors, significantly reducing chromatic aberration.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/minicat-lens.16.webp?v=1729697152\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eNeeds NO Flattener\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Petzval design inherently flattens the field, eliminating the need for an external field flattener.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Diagram_MiniCat-page-dark.webp?v=1729697187\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"h4\"\u003eCompatible with Electronic Motorized Devices\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eHassle Free Installation\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e( no mounting barcket kit required )\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"671\" width=\"671\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/minicat_EAF-crop.webp?v=1729697242\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2 class=\"h4\"\u003eDual side Dovetail Plate\u003c\/h2\u003e\n\u003cp\u003eThe lightweight dovetail plate is designed with both Vixen-style and Arca-Swiss types, offering enhanced compatibility with various mounts and mounting rings.\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"404\" width=\"570\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/minicat-whatsinbox-plate.webp?v=1729697331\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2 class=\"h4\"\u003eTilt Adjuster and Camera Angle Rotator\u003c\/h2\u003e\n\u003cp\u003eThe built-in tilt adjuster makes it easy to correct camera sensor tilt issues. Correct any angular discrepancies, and get the perfect angle on your images.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/minicat-whatsinbox-tiltadapter.webp?v=1729697403\" width=\"551\" height=\"551\"\u003e\u003c\/p\u003e\n\u003ch2\u003eDisclaimer\u003c\/h2\u003e\n\u003cp\u003eDue to the nature of MiniCat’s fast aperture optical design, edge stars may not be as round as with other RedCats. However, our tests show it still outperforms conventional lenses. With aberration correction software like BXT, peripheral distortions can be perfectly corrected on APS-C sensors, while Full Frame may need some fine-tuning for even better results.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTension screw:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen using the telescope with the motor, please ensure that the tension screw is not over-tightened. Over-tightening the tension screw may cause damage to the focuser.\u003c\/p\u003e\n\u003cp\u003eThink of it like driving a car and pressing the gas pedal while also pressing the brake simultaneously. Just as this action could harm your car's systems, over-tightening the tension screw could compromise the functionality of your telescope's focuser.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 269pt;\" width=\"358\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"mso-width-source: userset; mso-width-alt: 5485; width: 113pt;\" width=\"150\"\u003e \u003ccol style=\"mso-width-source: userset; mso-width-alt: 7606; width: 156pt;\" width=\"208\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; width: 113pt;\" width=\"150\" class=\"xl63\" height=\"20\"\u003eLens Type\u003c\/td\u003e\n\u003ctd style=\"border-left: none; width: 156pt;\" width=\"208\" class=\"xl63\"\u003e6-Element Petzval Design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003e178 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003e51 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eAperture\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003ef\/3.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eImage circle\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003e43.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"border-bottom: .5pt solid black; height: 30.0pt; border-top: none;\" class=\"xl66\" height=\"40\" rowspan=\"2\"\u003eFocuser\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003eWIFD R\u0026amp;P Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none; border-left: none;\" class=\"xl63\" height=\"20\"\u003eCompatible with EAF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"border-bottom: .5pt solid black; height: 45.0pt; border-top: none;\" class=\"xl64\" height=\"60\" rowspan=\"3\"\u003eAdapter Included\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003eTilt Adjuster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none; border-left: none;\" class=\"xl63\" height=\"20\"\u003eRotator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none; border-left: none;\" class=\"xl63\" height=\"20\"\u003eM54 → M48 Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eOptional Flattener\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003eNo Flattener Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"border-bottom: .5pt solid black; height: 45.0pt; border-top: none;\" class=\"xl66\" height=\"60\" rowspan=\"3\"\u003eCamera Format\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003eFull Frame (Compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none; border-left: none;\" class=\"xl63\" height=\"20\"\u003eAPS-C (Recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none; border-left: none;\" class=\"xl63\" height=\"20\"\u003eM4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eTube Length\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003e210 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eOTA Weight\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003e1.67 kg \/ 3.68 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; border-top: none;\" class=\"xl63\" height=\"20\"\u003eTotal Weight\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none;\" class=\"xl63\"\u003e\u003cspan style=\"font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e2.29 kg \/ 5.05 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMiniCat 51 OTA\u003c\/li\u003e\n\u003cli\u003eBahtinov Cap\u003c\/li\u003e\n\u003cli\u003eM48 Adapter\u003c\/li\u003e\n\u003cli\u003eDual Mounting Plate\u003c\/li\u003e\n\u003cli\u003eMounting Ring Handle Bar\u003c\/li\u003e\n\u003cli\u003eSoft carry Case\u003c\/li\u003e\n\u003cli\u003eAllen key Set\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Untitled_fb2e48cb-db0a-40a4-abd4-64e175221ab0.webp?v=1729697859\"\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/support.williamoptics.com\/products\/minicat-51-wifd\"\u003eManual, Spots and Size Diagrams\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/istronomyplus.com\/pages\/william-optics-warranty?_pos=1\u0026amp;_psq=william+optics+wa\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":46273885831397,"sku":"WO-T-C-MINI-RD","price":1363.0,"currency_code":"CAD","in_stock":true},{"title":"Space Grey","offer_id":46273885864165,"sku":"WO-T-C-MINI-SG","price":1293.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/minicat-pers-1.webp?v=1729697995","url":"https:\/\/istronomyplus.com\/products\/william-optics-new-minicat-51-f-3-5-wifd-t-c-mini-rd","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}