D70 70mm Double-Separation Single-Sided Blue Film Objective Lens for Astronomical Telescopes(D70F300)
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Description
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double-separation objective lens devised for enhanced astronomical viewing. Features a single-sided blue film coating to improve light transmission and reduce glare. Caliber of 70mm with an actual diameter of 72mm, ensuring compatibility with various telescope models. Available focal lengths: 300mm, 360mm, 400mm, 500mm, 700mm, 800mm, and 900mm for versatile usage. Includes a matching retaining ring for easy installation and secure fit in your telescope setup.
Description
(1)
double-separation objective lens devised for enhanced astronomical viewing. Features a single-sided blue film coating to improve light transmission and reduce glare. Caliber of 70mm with an actual diameter of 72mm, ensuring compatibility with various telescope models. Available focal lengths: 300mm, 360mm, 400mm, 500mm, 700mm, 800mm, and 900mm for versatile usage. Includes a matching retaining ring for easy installation and secure fit in your telescope setup.
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