90mm Refractive Astronomical Telescope Double Separation Objective Lens Multi-layer Coating Options(D90F900 Green Film)
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Description
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90mm diameter double separation objective lens devised for refractive astronomical telescopes, enhancing your stargazing experience. Available focal lengths of 500mm, 650mm, and 1000mm, allowing for versatile usage and customization based on your viewing needs. Features optional multi-layer coatings (green or blue film) to improve light transmission and reduce glare for clearer images. Precision-engineered with strict tolerances (+0/-0.12mm diameter, ±0.2mm center thickness, ±0.1% focal length) for optimal performance and reliability. Package includes one premium objective lens, perfect for DIY telescope assembly or upgrading existing telescopes for better astronomical observations.
Description
(1)
90mm diameter double separation objective lens devised for refractive astronomical telescopes, enhancing your stargazing experience. Available focal lengths of 500mm, 650mm, and 1000mm, allowing for versatile usage and customization based on your viewing needs. Features optional multi-layer coatings (green or blue film) to improve light transmission and reduce glare for clearer images. Precision-engineered with strict tolerances (+0/-0.12mm diameter, ±0.2mm center thickness, ±0.1% focal length) for optimal performance and reliability. Package includes one premium objective lens, perfect for DIY telescope assembly or upgrading existing telescopes for better astronomical observations.
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