when figuring out the frame measurements do we measure from the inner to inner or outter to outter of the frames? for A,DBL,B and ED?
when figuring out the frame measurements do we measure from the inner to inner or outter to outter of the frames? for A,DBL,B and ED?
Inner plus 2mm. Or if you have a demo lens, measure it.
Last edited by chip anderson; 10-05-2007 at 11:51 AM. Reason: mo'
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