{"product_id":"ts-optics-newtonian-coma-corrector","title":"TS GPU Newtonian Coma Corrector","description":"\u003cp\u003eThe TS GPU Aplanatic Newtonian Coma Corrector for Astrophotography is a further development of the GPU by Pal Gyulai - GPU-Optics. The result is a high quality 4-element corrector that provides round stars over the entire field of view even with larger camera sensors.\u003c\/p\u003e\n\u003cp\u003eUnlike to 2-element correctors, the stars are not enlarged and there are no halos. Furthermore, the whole construction is designed to be free from reflexes. Even very bright stars will be shown without reflexes or ghostings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Advantages of the GPU Coma Corrector:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery good coma correction for Newtonian telescopes from f\/3.5 to f\/6\u003cbr\u003eSuitable for full-frame format, depending on the image train and secondary mirror used.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo change of the focal length.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe focus plane is shifted outwards by 20mm. This prevents the corrector from protruding into the inside of the tube.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStars are smaller - no halo effects.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe corrector can be clamped, but also threaded directly to the focuser by an optional adapter.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe TS GPU corrector offers correction up to full-frame sensors. But for perfect illumination, a FLAT is necessesary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe optimum working distance is 55mm from the M48 male thread. The external thread itself does not count, as it disappears in the connection adapter. With optional adapters you can even thread the corrector to a filter drawer or similar. To do this, the corrector has an extended M48 x 0.75 thread on the camera side. Simply remove the lock ring and you have 3mm more M48 thread for threaded adaptations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Newtonian coma corrector\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptics: 4-element system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLength: 110mm to the camera connection\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWorking distance: 55 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnecting thread at the camera side: M48 x 0.75 male - length 5mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFilter thread for 2\" filters: yes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCounter ring with M48 female thread: length 3mm - can be unscrewed for screw adaptations\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCoating: Multicoating on each lens\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eWhats included:\u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cem\u003eGPU Coma Corrector with Locking Ring\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eDust Caps\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"TS Optics","offers":[{"title":"Default Title","offer_id":56966871286095,"sku":"TSGPU","price":327.13,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/1924\/6275\/files\/TSGPU-Coma-Corrector_3.jpg?v=1770295865","url":"https:\/\/www.horizonastronomy.ie\/en-mt\/products\/ts-optics-newtonian-coma-corrector","provider":"Horizon Astronomy • Telescope Center","version":"1.0","type":"link"}