Recently came across the suggestion to use Scotch tape to remove all kinds of foreign matter from lenses and filters. Tried it and found the results to be excellent--fingerprints and dust removed perfectly. But a professional protographer told me that the tape might leave residue and could possibly remove the lens coating. Couldn't find any residue with a magnifier after using the tape, but have no idea whether it affects lens coating. Does anyone have any experience with using Scotch tape in this way or any ideas about it?