D70mm Achromatic Objective Lens for DIY Astronomical Telescope - 400mm, 280mm, 330mm Focal Length Options(72F900 Green Film)
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Description
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D70mm achromatic objective lens devised for DIY astronomical telescopes, ensuring clear and images. Available in three focal lengths: 400mm, 280mm, and 330mm, allowing for versatile viewing options for various astronomical observations. Coated with adhesive blue, green, or standard film for enhanced light transmission and reduced chromatic aberration. Easy assembly with clear instructions: thin side of the lens faces the object, while the thick side faces the lens tube for optimal performance. 1 piece per package, perfect for telescope enthusiasts looking to upgrade or build their own telescope setup.
Description
(1)
D70mm achromatic objective lens devised for DIY astronomical telescopes, ensuring clear and images. Available in three focal lengths: 400mm, 280mm, and 330mm, allowing for versatile viewing options for various astronomical observations. Coated with adhesive blue, green, or standard film for enhanced light transmission and reduced chromatic aberration. Easy assembly with clear instructions: thin side of the lens faces the object, while the thick side faces the lens tube for optimal performance. 1 piece per package, perfect for telescope enthusiasts looking to upgrade or build their own telescope setup.
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