Quote Originally Posted by jeffreyg View Post
I always try to to make my spotting invisible to close inspection and find that using an Optivisor (loupes) very useful especially if the area to be spotted has obvious film grain.
+1 on the Optivisor, best thing I ever did for spotting prints. Here's a link to the real deal which I would recommend over a cheap knock off. http://www.doneganoptical.com/products/optivisor

Once you have an Optivisor, you'll find all kinds of uses for it. There great for looking at negs on a light table, inspecting lens, etc. Nice thing is that the Optivisor preserves your depth perception, with a magnifying glass I was never quite sure when the brush was going to hit the paper.