90mm Refractive Astronomical Telescope Double Separation Objective Lens - with Multi-layer Coating,1pcs(D90F500 Broadband Film)
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Description
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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 usage in various astronomical observations. Features multi-layer broadband coating options (green film/blue film) for improved light transmission and image clarity. Precision-engineered with tight diameter tolerance (+0/-0.12mm) and focal length tolerance (±0.1%) for optimal performance. Includes one lens, perfect for DIY telescope assembly or upgrading your existing refractive telescope setup.
Description
(1)
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 usage in various astronomical observations. Features multi-layer broadband coating options (green film/blue film) for improved light transmission and image clarity. Precision-engineered with tight diameter tolerance (+0/-0.12mm) and focal length tolerance (±0.1%) for optimal performance. Includes one lens, perfect for DIY telescope assembly or upgrading your existing refractive telescope setup.
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