[pure-silver] Re: Anti Newton glass negative carriers
- From: Peter De Smidt <pdesmidt@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sun, 04 May 2008 13:25:22 -0500
Nicholas O. Lindan wrote:
Something I have only seen in passing is the use of coated
anti-reflective glass, coated as in the coating on a camera lens,
to prevent the formation of Newton's rings.
I agree that this would be nice. The question, though, is how durable
the coating is. A friend of mine bought coated glass for his Saltzman
8x10 enlarger, and he said the coating was too delicate. I don't know
where he got it from, and maybe there are better types. There is
anti-reflection glass made for architectural uses, and these supposedly
have a very hard protective coating, but I can't find a source. It's
also unclear to me if that type of product is defect free enough to work
well in an enlarger. The coated picture framing glazing that I looked
at had too many defects.
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