90mm Double Separation Lens for Refractive Astronomical Telescopes - Focal Length Options 500mm/650mm/1000mm(D90F1000 Green Film)
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Description
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Double separation lens designed for refractive astronomical telescopes and improves your stargazing experience. Available in multiple focal lengths (500mm, 650mm, 1000mm) to meet different observation needs and preferences. Precision machined, with a diameter tolerance of +0/-0.12 mm and a focal length tolerance of ±0.1% for optimal performance. Coated with optional green or blue multi-layer broadband film to improve light transmission and image clarity. The package includes a 90mm objective lens, which is perfect for self-assembly of telescopes and upgrades for astronomy enthusiasts.
Description
(1)
Double separation lens designed for refractive astronomical telescopes and improves your stargazing experience. Available in multiple focal lengths (500mm, 650mm, 1000mm) to meet different observation needs and preferences. Precision machined, with a diameter tolerance of +0/-0.12 mm and a focal length tolerance of ±0.1% for optimal performance. Coated with optional green or blue multi-layer broadband film to improve light transmission and image clarity. The package includes a 90mm objective lens, which is perfect for self-assembly of telescopes and upgrades for astronomy enthusiasts.
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