1 x Achromatic D40 Lens 40mm Diameter Focal Length 205mm Blue Adhesive Film (42F100 Film)
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Description
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Achromatic lens designed for self-built refractive astronomical telescopes, ensuring clear and sharp images. It has an effective diameter of 40mm and a focal length of 205mm, ideal for astrophiles looking to enhance their viewing experience. Coated with a blue adhesive film that minimizes glare and improves light transmission for optimal performance. Easy to assemble with clear instructions; simply place the thin side of the lens towards the scene and the thick side towards the mirror tube. Perfect for DIY enthusiasts and astronomy lovers, this lens is an indispensable accessory for building custom telescopes.
Description
(1)
Achromatic lens designed for self-built refractive astronomical telescopes, ensuring clear and sharp images. It has an effective diameter of 40mm and a focal length of 205mm, ideal for astrophiles looking to enhance their viewing experience. Coated with a blue adhesive film that minimizes glare and improves light transmission for optimal performance. Easy to assemble with clear instructions; simply place the thin side of the lens towards the scene and the thick side towards the mirror tube. Perfect for DIY enthusiasts and astronomy lovers, this lens is an indispensable accessory for building custom telescopes.
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