Will insufficient pressure from the glass on the negative and paper cause Newton rings? I am going to take a shot at 20 x 24 inch contact prints, and I want to be sure that I set up in such a way that I do not have a problem with Newton rings. It appears from your post that anti Newton ring glass is unnecessary. In fact, it seems to me that I have read posts from individuals that encounter problems with Newton rings in making enlargements despite their investments in anti Newton glass.
Originally Posted by dpurdy