At 01:32 PM 10/30/2004, Richard Knoppow wrote: >The ratio of the diagonals is about 3.9. This is the factor >to multiply a 35mm lens by to get the equivalent 4x5 focal >length or to devide the 4x5 lens by to get the equivalent >35mm FL. And thanks to you too Richard. :-) Jim ============================================================================================================= 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.