Thread: Focal reducer back focus vs camera BF
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Old 09-09-2014, 01:18 PM
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Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline 		 
Join Date: Feb 2013
Location: Brisbane
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Is it safe to assume that when the manufacturer specifies a given distance from, say, the outer piece of glass that the thread that the T-adapter screws onto fully meets that spacing requirement?

Sorry for the mini-hijack Barry
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