Quote Originally Posted by kapitman View Post
For touching up the inside of cameras and film holders, I use a gun retouching pen made by Birchwood Casey. Found where guns are sold, of course.
And while you're there, pick up a can of Birchwood Casey "Gun Scrubber". The best non-residue-leaving instant de-greaser/de-oiler I've ever seen. Puts all other degreasing solvents I've used to shame. Wonderful for de-oiling shutter mechanisms and aperture leaves.
1. Don't breathe it
2. Don't use it on plastic.