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930mm Effective Focal Length
so the Quark can now operate all day off a small
Canon T ring connects T threads to a Canon EF mount camera
Each item has as a 90mm clear opening and allows you to safely view and/or image the sun
Swap filter(s) for different bandpass views
Combo Quark Blocker & Trimmer Restoration Daystar 930mm Effective Focal LengthReplacement of Combo Quark Blocker Trimmer to restore to new condition. After 5 15 years, humidity can cause a darkening of the blocker trimmer element. This service replaces the element to restore the filter to new operating condition. Storing your filter in a cool, dry place will prolong the life of the element.
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