{"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","url":"https:\/\/istronomyplus.com\/products\/ocal-h-2-newtonian-206mm-f2-72-astrograph","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}