I replied to 'fluff' yesterday but never saw my reply posted to the list? Anyway, I use canned air to blow away the loose dust, and I also use tac cloth (found where ever painting supplies are sold) to wipe the holders and the dark slides to get the stuborn particles. I am not aware of any problems caused by using the tac cloth, and I've been using them from time to time for several years. Maybe Richard could comment on whether or not this might be bad for the film or the holders. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ============================================================================================================= 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.