THe difference is enough that this is one of a few ways the manufacturers reduce silver contents of films and papers. Reduced silver content is of course significant in terms of rate of replenishment in processing machines, which is significant in cost of disposal and environmental load. -- Ryuji Suzuki "Keep a good head and always carry a light camera." ============================================================================================================= 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.