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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Maximum Magnification: 500
Compression rings (both on diagonal and adapter) to prevent barrel marring
If what you are looking for is the highest achievable brightness
My father named Paul''s design
The Baader Planetarium Semi-APO Filter works like it'''s name implies
Baader Red 610nm Long-Pass Filter - Round Mounted - FCFR- Size:1.25" Maximum Magnification: 500About the Baader Red 610nm Long Pass Filter Round Mounted Baader Planetarium astronomy filters by far supersede the mediocre quality of common "flame polished" color filters. A fine optical polish and 2 mm thick glass allows the Baader Red Filter to be inserted anywhere into the optical path without introducing astigmatism or other defects. For instance, they can be used in front of a binocular viewer without degrading the image in any way. Substrates
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