Shannon, I have used a 240mm f/9 Nikkor M process lens for 8x10 enlarging. The shorter focal length keeps the distances more reasonable than what you need for a 300. With a 300 at 1:1, you need a film-to-paper distance of about 4 ft., and it only gets worse as you go to bigger prints. ============================================================================================================= 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.