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. Features a 40mm actual diameter and a focal length of 205mm, ensuring clear and sharp images. Coated with an adhesive blue film for enhanced light transmission and reduced glare. Easy to assemble; simply orient the thin side of the lens towards the scene for optimal performance. Perfect for astronomy enthusiasts looking to build or upgrade their own telescopes with reliable components.
Description
(1)
Achromatic objective lens devised for self-made refractive astronomical telescopes. Features a 40mm actual diameter and a focal length of 205mm, ensuring clear and sharp images. Coated with an adhesive blue film for enhanced light transmission and reduced glare. Easy to assemble; simply orient the thin side of the lens towards the scene for optimal performance. Perfect for astronomy enthusiasts looking to build or upgrade their own telescopes with reliable components.
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