{"product_id":"sky-watcher-0-9x-reducer-field-flattener-for-evolux-82ed-product-code-20112","title":"Sky-Watcher 0.9× Reducer \/ Field Flattener for Evolux-82ED","description":"\u003ch2\u003eSky-Watcher 0.9× Reducer \/ Field Flattener for Evolux-82ED — 20112\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher 0.9× Reducer \/ Field Flattener is a dedicated optical corrector designed for the \u003cstrong\u003eEvolux-82ED refractor\u003c\/strong\u003e. Using a high-quality two-element design with one ED element, it both \u003cstrong\u003ereduces focal length\u003c\/strong\u003e and \u003cstrong\u003eflattens the image field\u003c\/strong\u003e, delivering crisp star images across the entire frame — ideal for serious wide-field astrophotography.\u003c\/p\u003e\n\u003ch3\u003eFaster focal ratio, wider framing\u003c\/h3\u003e\n\u003cp\u003eWhen installed, this reducer shortens the Evolux-82ED’s focal length by \u003cstrong\u003e0.9×\u003c\/strong\u003e, transforming it into a faster, more capable imaging system:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length:\u003c\/strong\u003e 477mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio:\u003c\/strong\u003e f\/5.8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eField of view:\u003c\/strong\u003e approx. 4.34°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe faster optics allow shorter exposures while capturing more of the sky in a single frame — perfect for nebulae, large galaxies, Milky Way frames and star clusters.\u003c\/p\u003e\n\u003ch3\u003eEdge-to-edge sharpness\u003c\/h3\u003e\n\u003cp\u003eThe integrated field flattener provides excellent field-edge correction, illuminating a \u003cstrong\u003efull-frame sensor\u003c\/strong\u003e and maintaining \u003cstrong\u003epinpoint stars across a 36mm image circle\u003c\/strong\u003e. This is especially beneficial for DSLR and full-frame astro cameras.\u003c\/p\u003e\n\u003ch3\u003eQuality optics \u0026amp; robust build\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTwo-element design with ED glass\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFully multi-coated\u003c\/strong\u003e for high transmission and reduced reflections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrecision-machined body for secure, accurate spacing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImaging-friendly connections\u003c\/h3\u003e\n\u003cp\u003eSupplied with an \u003cstrong\u003eadapter \/ field rotator\u003c\/strong\u003e, the reducer is easy to integrate into a wide range of setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBack focus:\u003c\/strong\u003e 55mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThreads:\u003c\/strong\u003e M56×1 (female) \/ M48 (male)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal thread supports \u003cstrong\u003e2\" filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with Sky-Watcher \u003cstrong\u003eM48 Canon and Nikon T-ring adapters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Sky-Watcher 0.9× Reducer \/ Field Flattener for Evolux-82ED (20112) is an excellent upgrade for optimising image quality, delivering wider fields, flatter frames and beautifully sharp results across today’s larger camera sensors.\u003c\/p\u003e","brand":"SkyWatcher","offers":[{"title":"Default Title","offer_id":57010353799542,"sku":"6970456093373","price":249.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2235\/3014\/files\/Sky-Watcher-0-9x-Reducer-Field-Flattener-for-Evolux-82ED-1.webp?v=1768830585","url":"https:\/\/welshastronomy.co.uk\/products\/sky-watcher-0-9x-reducer-field-flattener-for-evolux-82ed-product-code-20112","provider":"The Welsh Astronomy Centre","version":"1.0","type":"link"}