1pcs D70mm Refractive Astronomical Telescope Objective Lens Set for DIY Optical Experiments - Focal Lengths 300mm to 900mm(D70 F500)
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D70mm refractive objective lens devised for astronomical telescopes, enhancing your stargazing experience. Versatile focal lengths available (300mm, 360mm, 400mm, 500mm, 700mm, 800mm, 900mm) to suit various observational needs and preferences. Features a double separation structure for improved optical performance, ensuring clear and bright images of objects. Single-sided blue film coating minimizes reflections and enhances light transmission, providing sharper views of the night sky. Ideal for DIY enthusiasts and educational purposes, this lens set is perfect for building custom telescopes and conducting optical experiments.
Description
(1)
D70mm refractive objective lens devised for astronomical telescopes, enhancing your stargazing experience. Versatile focal lengths available (300mm, 360mm, 400mm, 500mm, 700mm, 800mm, 900mm) to suit various observational needs and preferences. Features a double separation structure for improved optical performance, ensuring clear and bright images of objects. Single-sided blue film coating minimizes reflections and enhances light transmission, providing sharper views of the night sky. Ideal for DIY enthusiasts and educational purposes, this lens set is perfect for building custom telescopes and conducting optical experiments.
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