I'm back with a request for help again! New to this forum but am grateful for your expertise as my knowledge is very limited. I'm trying to sell the large format equipment of a friend's father. In examining and photographing one of his lenses (Calumet Caltar-S II 6" 150mm f:5,6 with Multicoating) I discovered several white "spots" around the outside edge of the lens. Looking at them under magnification they look somewhat like bubbles. Many of them don't have a center - just a tiny white outline of a bubble. I've looked at what fungus looks like and this doesn't look like fungus. I want to be as accurate as possible in my description and if this a serious issue I want to make note of it. Any ideas? Thank you in advance! Mark
