Scant stuff on the net besides it being the best solvent before being essentially banned so was wondering about its film cleaning properties abilities. It was used more for motion picture, I guess ...much use for our still negatives or overkill? What is it supposed to clean exactly? Oil/fingerprints/Dust? Would it "ruin" the still negative for printing in any way? Is a microfiber/brush/Dust Off better or safer? Anyone have a procedure besides dabbing a cloth in it and goin' to town? Just bathe -the film- in it? Anything?