> My lens measures about 1-9/16 inches or nearly 40mm. It > does not fit the 39mm cutout in an Omega lensboard. I was That's what I thought. So guys, I like my 100mm Ektar but if you do buy one, get one with a retaining ring cause you might have a hard time finding a retaining ring that fits. -- Eric ============================================================================================================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.