D40 Achromatic Objective Lens for DIY Refractive Telescope - 40mm Diameter, 205mm Focal Length, 1PCS(40F205 Blue Film)
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Description
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D40 achromatic objective lens devised for self-made refractive telescopes, ensuring clear and sharp images. Features a 40mm actual diameter and a focal length of 205mm, perfect for amateur astronomers and telescope enthusiasts. Coated with adhesive blue film to enhance light transmission and reduce glare, improving your stargazing experience. Easy to assemble; follow the assembly precautions by positioning the thin side of the lens towards the scene. Ideal for various astronomical observations, making it a must-have accessory for enhancing your telescope's performance.
Description
(1)
D40 achromatic objective lens devised for self-made refractive telescopes, ensuring clear and sharp images. Features a 40mm actual diameter and a focal length of 205mm, perfect for amateur astronomers and telescope enthusiasts. Coated with adhesive blue film to enhance light transmission and reduce glare, improving your stargazing experience. Easy to assemble; follow the assembly precautions by positioning the thin side of the lens towards the scene. Ideal for various astronomical observations, making it a must-have accessory for enhancing your telescope's performance.
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