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ACHROMAT 53.5MM DIAMETER, 75MM FL CTD.
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Item No: L3861
Price: $9.00
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| This cemented doublet appears to be color corrected for visual but has a bit of distortion (spherical aberration) so not suitable (by itself) for astronomical use. 53.5mm diameter with a focal length of 75mm. Edge thickness is 16mm, center thickness is 23mm. Has a bluish/purple AR coating on all four sides. Limited supply! |
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