11/14/2023 0 Comments Meade 16 inch telescope for sale![]() ![]() With our three-lens 4 inch AFFR (Alluna Flat Field Reducer), the focal length is reduced from f8.0 to f6,0. The corrector is optimized from 404 - 1050 nm. With this corrector a photographic plane, a free field can be used of 65 mm diameter free of coma and astigmatism. For CCD cameras in full size or greater, we offer a double-lens 4 inch AFFC (Alluna Flat Field Corrector). Astrophotographers can use our telescopes for making photographs without visible loss of a large field and without corrective lenses. When properly installed, the Ritchey-Chrétien system is known for its large, coma-free field. ![]() With delivery, each telescope comes with a detailed test certificate including all necessary optical information. Only in this way have we been able to ensure a consistently high optical and mechanical quality of our telescopes for years. We use only optics from our own production. In our own manufacturing facility every single RC mirror set is manufactured with utmost precision and care as well as quality inspection. Our Ritchey Chrétien telescopes are available in sizes 16", 18", 20", 22" and 24 inches.Īlluna RC telescopes - some advantages at a glanceĪlluna Optics has been known for years for excellent optics for reflecting telescopes. Already today our clients countless installations reliably fulfil their purpose night for night. Highly accurate optics in a high quality tube, optimized system accessories and intelligent control make Alluna Ritchey-Chrétien telescopes to the reference in this size-class of telescopes. The universal usability, stability and compact design with low weight still make Alluna Ritchey-Chrétien telescopes the perfect telescope for schools and public observatories. Ideally suited for astrophotography, even with large CCD cameras, as well as for use in the broad field of astronomical research. Spotting Scopes, Binoculars & MonocularsĪlluna Ritchey-Chrétien telescopes are professional telescopes and convince with outstanding properties. ![]()
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