{"product_id":"ts-optics-refractor-0-79x-3-ed-riduttore-correttore-per-grandi-sensori","title":"TS-Optics REFRACTOR 0.79x 3\" ED Reducer Corrector for large sensors","description":"\u003cdiv class=\"product-description\" style=\"font-family:Arial,sans-serif;font-size:16px;line-height:1.7;color:#333;\"\u003e\n\n\u003ch1 style=\"font-size:24px;font-weight:bold;\"\u003eTS-Optics REFRACTOR 0.79x 3\" ED Reducer Corrector for large sensors\"\u003c\/h1\u003e\n\n\u003cp style=\"font-size:18px;margin-top:10px;\"\u003eThe TS Optics PHOTOLINE 0.79x reducer\/corrector ... has been designed for astrophotography through APO refractor telescopes. It makes the system faster and corrects field curvature even with large sensors. It does not require the extreme back focus of the Riccardi corrector. It is suitable for all models with 2.5\" focusers and connects to them via an M68 thread or a 3\" barrel. Astrophotographic results with the TS 3\" Photoline reducer: Image on the left - Crescent Nebula by Johannes Jensen • Telescope: TS PHOTOLINE 102 mm f\/7 apo • TS 0.79x Photoline Reducer Corrector • Camera: Canon EOS1100DA - Exposure time 36x360 seconds • Link to full resolution Back Focus - the distance from the M48 thread to the camera sensor depends on the focal length of the telescope: • Focal length up to 350 mm .... 70 mm • Focal length up to 420 mm .... 65 mm • Focal length 450-500 mm ... 61 mm • Focal length 510-600 mm ... 58 mm • Focal length 610-700 mm ... 57 mm • Focal length 710-790 mm ... 56 mm • Focal length from 800 mm ... 55 mm To find the exact distance, we offer spacer and extension rings. Connection to the telescope The Photoline reducer fits many focusers directly via the M68x1 connection thread. We also offer adapters for many focusers in our ACCESSORIES section.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eMain features\u003c\/h2\u003e\n\n\u003cp\u003eTS Optics quality for a reliable and rewarding observation experience.\u003c\/p\u003e\n\n\u003cul style=\"padding-left:20px;\"\u003e\u003cli\u003eMount \/ thread: M68\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eMain technical specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin-top:10px;\"\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eBrand\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTS Optics\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eModel\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTS-Optics REFRACTOR 0.79x 3\" ED Reducer Corrector for large sensors\"\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eType\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAccessories\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eMount \/ thread\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eM68\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003cdiv style=\"background-color:#f0f8ff;padding:15px;margin-top:30px;border-left:4px solid #007acc;\"\u003e\n\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e\u003cbr\u003eTake advantage of free shipping throughout Italy for orders over €199.99!\u003c\/div\u003e\n\n\n\u003c\/div\u003e","brand":"TS Optics","offers":[{"title":"Default Title","offer_id":51120855875800,"sku":"TSRED379","price":329.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/0722\/6072\/files\/a4485a96792dab192f09865b2a195630.jpg?v=1764072886","url":"https:\/\/www.giordanoastronomia.it\/en\/products\/ts-optics-refractor-0-79x-3-ed-riduttore-correttore-per-grandi-sensori","provider":"Giordano Astronomia","version":"1.0","type":"link"}