Quote:
Originally Posted by bojan
Pat, I am aware of that..
but it is only one surface affected.. so 6% is not a big deal. I can absorb that.
This is equivalent to reduction in aperture from 140mm down to 135.7.. negligible.
I am pretty sure the loss due to current scattering on the damaged surface is worse.. not to mention the loss of contrast.
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it is 12%........... 6 off each surface, if both surfaces are affected of course?
pat