1 Piece 90mm Refractive Astronomic Telescope with Double Separation of Objective Lenses - 500mm/650mm/1000mm Focal Length Option (D90F900 Blue Film)
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Description
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Double separated objective lenses for refractive astronomical telescopes that enhance your stargazing experience. Available in multiple focal lengths (500mm, 650mm, 1000mm) to meet different requirements of astronomical observation. Optical coatings available in green or blue film for improved light transmission and image sharpness. Precision manufacturing with tight tolerances for diameter, center thickness, and focal length to ensure optimal performance. Includes two refractive lens groups for use as objective and collimation lenses, perfect for amateur and professional astronomers alike.
Description
(1)
Double separated objective lenses for refractive astronomical telescopes that enhance your stargazing experience. Available in multiple focal lengths (500mm, 650mm, 1000mm) to meet different requirements of astronomical observation. Optical coatings available in green or blue film for improved light transmission and image sharpness. Precision manufacturing with tight tolerances for diameter, center thickness, and focal length to ensure optimal performance. Includes two refractive lens groups for use as objective and collimation lenses, perfect for amateur and professional astronomers alike.
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