1 x D40 Achromatic Objective Lens for DIY Refractive Astronomical Telescope - 40mm D, Focal Length 205mm (42F134 Green Film)
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Description
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D40 achromatic lens designed for self-built refractive astronomical telescopes, to enhance the star-watching experience. It has an effective diameter of 40mm and a focal length of 205mm, giving you clear and crisp images of objects. Coated with blue adhesive film for better light transmission and reduced chromatic aberration, ensuring vibrant colours and details. Easy to assemble with clear instructions; simply orient the thin side of the lens towards the scene for optimal performance. Compatible with various telescope models, it is a versatile addition to your astronomical tool kit for beginners and enthusiasts.
Description
(1)
D40 achromatic lens designed for self-built refractive astronomical telescopes, to enhance the star-watching experience. It has an effective diameter of 40mm and a focal length of 205mm, giving you clear and crisp images of objects. Coated with blue adhesive film for better light transmission and reduced chromatic aberration, ensuring vibrant colours and details. Easy to assemble with clear instructions; simply orient the thin side of the lens towards the scene for optimal performance. Compatible with various telescope models, it is a versatile addition to your astronomical tool kit for beginners and enthusiasts.
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