Achromatic D40 Objective Lens for Refractive Astronomical Telescope - Diameter 40 mm, Focal Length 205 1 Piece (40F205 Blue Film)
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Description
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D40 achromatic lens designed for self-built refractive astronomical telescopes. It has an effective diameter of 40mm and a focal length of 205mm, ensuring clear and sharp images of objects. Coated with a blue adhesive film to improve light transmission and reduce chromatic aberration for optimal viewing. Easy to assemble; simply place the thin side towards the scene and the thick side towards the mirror tube. Perfect for astrophiles looking to improve the performance of their telescope and explore the night sky.
Description
(1)
D40 achromatic lens designed for self-built refractive astronomical telescopes. It has an effective diameter of 40mm and a focal length of 205mm, ensuring clear and sharp images of objects. Coated with a blue adhesive film to improve light transmission and reduce chromatic aberration for optimal viewing. Easy to assemble; simply place the thin side towards the scene and the thick side towards the mirror tube. Perfect for astrophiles looking to improve the performance of their telescope and explore the night sky.
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