Thread: William Optics Flat61A back focus
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Old 09-12-2019, 07:59 PM
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Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline 		 
Join Date: Feb 2013
Location: Brisbane
Posts: 5,479
Hmm interesting. The fixed Flat61 has the correct spacing for adding just the T-thread adapter plus camera body.
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