Does anyone see a loss of resolution while using one or two AN glass? In contact prints, enlarging and/or scanning?
Are there significant differences in AN glass?
What is the history of AN glass manufacturing and usage?
Is it a coating or surface treatment?
I have a pile of AN that is old, not for sale. Of course it is not stacked, but stored vertically and not touching.
Finally, does AN glass wear or become degraded with careful cleaning?
An expiring mind wants to know...
This thread from 2016 does not answer all questions.
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