Hi, I obtained a set of 12 "under-the lens" multigrade filters with holder from Ilford. They are quite dusty, but most of the dust can be blown of. More seriously are the finger marks on them. Is there a way to clean them (I know that water is out of the question, so maybe isopropanol, or 100% alchol?) Most opinions on these under the lens filters are that they are equally good as above the lens, but with these finger prints on some of them (obviously the most used ones..) wiil , I guess degrade the image on the print Best, Cor ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.