1pc Refractive Astronomical Telescope Double Separation Objective Lens D=90mm - 500mm/650mm/1000mm Focal Length(D90F500 Broadband Film)
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Description
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Premium 90mm diameter double separation objective lens devised for refractive astronomical telescopes, enhancing your stargazing experience. Available in multiple focal lengths: 500mm, 650mm, and 1000mm, catering to various observational needs and preferences. Coating options include multi-layer green film and blue film, ensuring optimal light transmission and image clarity. Precision-engineered with strict tolerances for diameter, center thickness, and focal length, delivering exceptional image (1/4-1/8). Includes one complete lens assembly, perfect for both objective and collimating lens applications in your telescope setup.
Description
(1)
Premium 90mm diameter double separation objective lens devised for refractive astronomical telescopes, enhancing your stargazing experience. Available in multiple focal lengths: 500mm, 650mm, and 1000mm, catering to various observational needs and preferences. Coating options include multi-layer green film and blue film, ensuring optimal light transmission and image clarity. Precision-engineered with strict tolerances for diameter, center thickness, and focal length, delivering exceptional image (1/4-1/8). Includes one complete lens assembly, perfect for both objective and collimating lens applications in your telescope setup.
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