Dual Separation Lens for 90mm Refractive Astronomical Telescope (D90F900 Blue Film)
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Description
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D90mm dual separation lens designed for refractive astronomical telescopes, which enhances your star-watching 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 better light transmission and image clarity. Precision production 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 the perfect choice for astronomy enthusiasts and hobbyists.
Description
(1)
D90mm dual separation lens designed for refractive astronomical telescopes, which enhances your star-watching 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 better light transmission and image clarity. Precision production 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 the perfect choice for astronomy enthusiasts and hobbyists.
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