90mm Refractive Astronomical Telescope Double Separation Objective Lens(D90F500 Broadband Film)
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Description
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D90mm double separation objective lens devised for refractive astronomical telescopes, enhancing your stargazing experience. Available in three focal lengths: 500mm, 650mm, and 1000mm, allowing for versatile use in various astronomical observations. Features multi-layer broadband coating options (green film or blue film) for improved light transmission and image clarity. Precision manufacturing with diameter tolerance of +0/-0.12mm and focal length tolerance of ±0.1% for accurate performance. Ideal for DIY telescope assembly and upgrades, making it a perfect choice for astronomy enthusiasts and hobbyists.
Description
(1)
D90mm double separation objective lens devised for refractive astronomical telescopes, enhancing your stargazing experience. Available in three focal lengths: 500mm, 650mm, and 1000mm, allowing for versatile use in various astronomical observations. Features multi-layer broadband coating options (green film or blue film) for improved light transmission and image clarity. Precision manufacturing with diameter tolerance of +0/-0.12mm and focal length tolerance of ±0.1% for accurate performance. Ideal for DIY telescope assembly and upgrades, making it a perfect choice for astronomy enthusiasts and hobbyists.
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