D70mm Achromatic Objective Lens for DIY Astronomical Telescope - 400mm, 280mm, 330mm Focal Lengths(72F700 Single-Sided Green Film)
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Description
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D70mm achromatic objective lens devised for DIY astronomical telescopes, offering clear and sharp images. Available in three focal lengths: 400mm, 280mm, and 330mm, allowing for versatile viewing options for astronomy enthusiasts. Coated with adhesive blue, green, or standard film to enhance light transmission and reduce chromatic aberration. Easy assembly with clear instructions: thin side of the lens faces the object, thick side towards the lens tube for optimal performance. Each package contains 1 piece, making it a perfect addition to your telescope project or upgrade for improved viewing experiences.
Description
(1)
D70mm achromatic objective lens devised for DIY astronomical telescopes, offering clear and sharp images. Available in three focal lengths: 400mm, 280mm, and 330mm, allowing for versatile viewing options for astronomy enthusiasts. Coated with adhesive blue, green, or standard film to enhance light transmission and reduce chromatic aberration. Easy assembly with clear instructions: thin side of the lens faces the object, thick side towards the lens tube for optimal performance. Each package contains 1 piece, making it a perfect addition to your telescope project or upgrade for improved viewing experiences.
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