D40 Glued Achromatic Objective Lens for DIY Refractive Astronomical Telescope - 40mm Diameter, 205mm Focal Length,1pcs(40F205 Blue Film)
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Description
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Achromatic objective lens devised for self-made refractive astronomical telescopes, ensuring clear and sharp images. Features an actual diameter of 40mm and a focal length of 205mm, perfect for enhancing your telescope's performance. Coated with an adhesive blue film to reduce reflections and improve light transmission for better viewing experiences. Easy to install with clear assembly instructions; simply position the thin side of the lens towards the scene. Ideal for astronomy enthusiasts looking to upgrade their telescope or create a custom setup for stargazing.
Description
(1)
Achromatic objective lens devised for self-made refractive astronomical telescopes, ensuring clear and sharp images. Features an actual diameter of 40mm and a focal length of 205mm, perfect for enhancing your telescope's performance. Coated with an adhesive blue film to reduce reflections and improve light transmission for better viewing experiences. Easy to install with clear assembly instructions; simply position the thin side of the lens towards the scene. Ideal for astronomy enthusiasts looking to upgrade their telescope or create a custom setup for stargazing.
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