{"product_id":"zwo-1-25-atmospheric-dispersion-corrector-adc","title":"ZWO 1.25\" Atmospheric Dispersion Corrector (ADC)","description":"\u003cp data-path-to-node=\"2\"\u003eEliminate unwanted color fringing and unleash high-resolution planetary imaging with the \u003cb data-path-to-node=\"2\" data-index-in-node=\"89\"\u003eZWO 1.25\" Atmospheric Dispersion Corrector (ADC)\u003c\/b\u003e. Voted a \u003ci data-path-to-node=\"2\" data-index-in-node=\"147\"\u003e\"Hot Sky Product\"\u003c\/i\u003e by \u003ci data-path-to-node=\"2\" data-index-in-node=\"168\"\u003eSky \u0026amp; Telescope\u003c\/i\u003e magazine, this essential optical accessory counteracts the prismatic refraction caused by Earth’s atmosphere—allowing you to capture razor-sharp views and crisp photographs of Jupiter, Saturn, Mars, and the Moon, even when they are low on the horizon.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003eAvailable in India with official warranty and support through \u003cb data-path-to-node=\"3\" data-index-in-node=\"62\"\u003eModern Telescopes\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch2 data-path-to-node=\"5\"\u003eWhy You Need an ADC for Planetary Imaging \u0026amp; Visual Observing\u003c\/h2\u003e\n\u003cp data-path-to-node=\"6\"\u003eWhen light from celestial objects passes through Earth's atmosphere at an angle, the atmosphere acts like a glass prism. It bends light of different wavelengths (colors) at slightly different angles—a phenomenon known as \u003cb data-path-to-node=\"6\" data-index-in-node=\"221\"\u003eatmospheric dispersion\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eThis creates blue\/cyan fringes on one side of a planet and red\/orange fringes on the opposite side, resulting in blurred fine details, loss of contrast, and degraded image resolution that cannot be recovered in post-processing.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eThe \u003cb data-path-to-node=\"8\" data-index-in-node=\"4\"\u003eZWO ADC\u003c\/b\u003e solves this problem optically at the telescope level. Utilizing two high-precision rotatable prisms, it applies an equal and opposite dispersion effect, bringing red, green, and blue light back into perfect alignment at your focal plane.\u003c\/p\u003e\n\u003ch2 data-path-to-node=\"10\"\u003eKey Features \u0026amp; Highlights\u003c\/h2\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eHigh-Precision H-K9L Prisms:\u003c\/b\u003e Features two precision-ground H-K9L (Schott BK7 equivalent) glass prisms crafted with \u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"115\"\u003e\u003cspan class=\"math-inline\" data-math=\"\\lambda\/10\" data-index-in-node=\"115\"\u003e$\\lambda\/10$\u003c\/span\u003e @ 632.8nm\u003c\/b\u003e surface accuracy for near-zero optical distortion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003eAnti-Reflective Broadband Coating:\u003c\/b\u003e UV-friendly AR coatings (optimized for 300 nm to 700 nm wavelengths) maximize light transmission, making it ideal for visual observing and UV\/IR planetary photography.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003eDual Lever Adjustment System:\u003c\/b\u003e Two independently adjustable levers allow you to seamlessly vary the correction strength from zero to maximum depending on the target's altitude.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003e\u003cb data-path-to-node=\"11,3,0\" data-index-in-node=\"0\"\u003eIntegrated Bubble Level \u0026amp; Locking Scale:\u003c\/b\u003e Includes a built-in bubble level and white locking screw to easily identify your horizontal zero (null) position across changing mount orientations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,4,0\"\u003e\u003cb data-path-to-node=\"11,4,0\" data-index-in-node=\"0\"\u003eVersatile T2 \u0026amp; 1.25\" Compatibility:\u003c\/b\u003e Comes standard with a 1.25\" nosepiece, 1.25\" eyepiece adapter with brass compression ring, and standard male\/female \u003cb data-path-to-node=\"11,4,0\" data-index-in-node=\"152\"\u003eM42x0.75 (T2) threads\u003c\/b\u003e for direct coupling to ZWO ASI cameras, Barlow lenses, and filter wheels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-path-to-node=\"13\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable data-path-to-node=\"14\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,1,0,0\"\u003e\u003cb data-path-to-node=\"14,1,0,0\" data-index-in-node=\"0\"\u003eModel\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,1,1,0\"\u003eZWO 1.25\" ADC (Atmospheric Dispersion Corrector)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,2,0,0\"\u003e\u003cb data-path-to-node=\"14,2,0,0\" data-index-in-node=\"0\"\u003ePrism Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,2,1,0\"\u003eH-K9L (Equivalent to Schott BK7)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,3,0,0\"\u003e\u003cb data-path-to-node=\"14,3,0,0\" data-index-in-node=\"0\"\u003eSurface Accuracy\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,3,1,0\"\u003e\u003cspan class=\"math-inline\" data-math=\"\\lambda\/10\" data-index-in-node=\"0\"\u003e$\\lambda\/10$\u003c\/span\u003e @ 632.8nm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,4,0,0\"\u003e\u003cb data-path-to-node=\"14,4,0,0\" data-index-in-node=\"0\"\u003ePrism Deviation Angle\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,4,1,0\"\u003e2°\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,5,0,0\"\u003e\u003cb data-path-to-node=\"14,5,0,0\" data-index-in-node=\"0\"\u003eOptical Coating\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,5,1,0\"\u003eBroadband UV-Friendly Anti-Reflective (300–700 nm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,6,0,0\"\u003e\u003cb data-path-to-node=\"14,6,0,0\" data-index-in-node=\"0\"\u003eTelescope Connection\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,6,1,0\"\u003e1.25\" Barrel \/ Female T2 (M42x0.75) Thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,7,0,0\"\u003e\u003cb data-path-to-node=\"14,7,0,0\" data-index-in-node=\"0\"\u003eCamera \/ Eyepiece Connection\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,7,1,0\"\u003e1.25\" Eyepiece Holder \/ Male T2 (M42x0.75) Thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,8,0,0\"\u003e\u003cb data-path-to-node=\"14,8,0,0\" data-index-in-node=\"0\"\u003eBody Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,8,1,0\"\u003eCNC-Machined Anodized Aluminum\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,9,0,0\"\u003e\u003cb data-path-to-node=\"14,9,0,0\" data-index-in-node=\"0\"\u003eAlignment Aid\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,9,1,0\"\u003eBuilt-in Bubble Level \u0026amp; Rotatable Zero Scale\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,10,0,0\"\u003e\u003cb data-path-to-node=\"14,10,0,0\" data-index-in-node=\"0\"\u003eWeight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"14,10,1,0\"\u003e~200 g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 data-path-to-node=\"16\"\u003e\u003c\/h2\u003e\n\u003ch2 data-path-to-node=\"2\"\u003eWhy Buy the ZWO ADC from Modern Telescopes India?\u003c\/h2\u003e\n\u003cp data-path-to-node=\"3\"\u003eWhen purchasing precision optical gear like the ZWO Atmospheric Dispersion Corrector, buying from an authorized dealer guarantees authentic performance and long-term peace of mind. \u003cb data-path-to-node=\"3\" data-index-in-node=\"181\"\u003eModern Telescopes\u003c\/b\u003e is India’s premier astronomy and astrophotography store, providing key benefits for Indian stargazers:\u003c\/p\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003eOfficial 2-Year ZWO Warranty:\u003c\/b\u003e Get full manufacturer warranty coverage and localized hassle-free technical support without the nightmare of shipping defective units overseas.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003eDirect Import \u0026amp; 100% Genuine Products:\u003c\/b\u003e Authentic ZWO optics sourced directly from factory-certified supply chains—guaranteeing pristine optical coatings and precise prism alignment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003eExpert Astrophotography Guidance:\u003c\/b\u003e Backed by real optical specialists and astrophotographers who can guide you on setup order, focal ratio calculations, and back-focus spacing for your specific telescope and camera configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003eSecure Fast Shipping Across India:\u003c\/b\u003e Multi-layer protective packaging engineered specifically for delicate optical glass, with fully insured and tracked express delivery across metro and tier-2\/3 cities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,4,0\"\u003e\u003cb data-path-to-node=\"4,4,0\" data-index-in-node=\"0\"\u003eTrusted by Leading Indian Institutions:\u003c\/b\u003e Chosen by premier organizations including IIA, IITs, IUCAA, IISER, and DRDO for high-precision astronomical equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-path-to-node=\"16\"\u003e\u003c\/h2\u003e\n\u003ch2 data-path-to-node=\"16\"\u003eRecommended Optical Train Setup\u003c\/h2\u003e\n\u003cp data-path-to-node=\"17\"\u003eFor maximum performance, the ZWO ADC should be placed where the optical beam is slower (f\/10 or slower).\u003c\/p\u003e\n\u003cul data-path-to-node=\"18\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"18,0,0\"\u003e\u003cb data-path-to-node=\"18,0,0\" data-index-in-node=\"0\"\u003eOptimal Chain:\u003c\/b\u003e \u003ccode data-path-to-node=\"18,0,0\" data-index-in-node=\"15\"\u003eTelescope\u003c\/code\u003e \u003cspan class=\"math-inline\" data-math=\"\\rightarrow\" data-index-in-node=\"25\"\u003e$\\rightarrow$\u003c\/span\u003e \u003ccode data-path-to-node=\"18,0,0\" data-index-in-node=\"37\"\u003eBarlow Lens\u003c\/code\u003e \u003cspan class=\"math-inline\" data-math=\"\\rightarrow\" data-index-in-node=\"49\"\u003e$\\rightarrow$\u003c\/span\u003e \u003ccode data-path-to-node=\"18,0,0\" data-index-in-node=\"61\"\u003eZWO ADC\u003c\/code\u003e \u003cspan class=\"math-inline\" data-math=\"\\rightarrow\" data-index-in-node=\"69\"\u003e$\\rightarrow$\u003c\/span\u003e \u003ccode data-path-to-node=\"18,0,0\" data-index-in-node=\"81\"\u003eFilter Wheel\u003c\/code\u003e \u003cspan class=\"math-inline\" data-math=\"\\rightarrow\" data-index-in-node=\"94\"\u003e$\\rightarrow$\u003c\/span\u003e \u003ccode data-path-to-node=\"18,0,0\" data-index-in-node=\"106\"\u003ePlanetary Camera\u003c\/code\u003e (e.g., ZWO ASI224MC, ASI662MC, ASI585MC, ASI178MM).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"18,1,0\"\u003e\u003ci data-path-to-node=\"18,1,0\" data-index-in-node=\"0\"\u003eNote:\u003c\/i\u003e If using a fast telescope (f\/4 to f\/6), place a 2x–3x Barlow lens \u003cb data-path-to-node=\"18,1,0\" data-index-in-node=\"72\"\u003ein front\u003c\/b\u003e of the ADC to increase the focal ratio to f\/10+, preventing unwanted astigmatism.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":43399729709117,"sku":null,"price":11000.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/6595\/8205\/files\/omis-zw-adc-1o.webp?v=1785074278","url":"https:\/\/moderntelescopes.net\/products\/zwo-1-25-atmospheric-dispersion-corrector-adc","provider":"Modern Telescopes","version":"1.0","type":"link"}