Good point. Think about the depth of field, (or lack thereof) when using a 210mm w/2X= 420mm. I doubt of you have a depth more than a few mm's, even at the equivalent of f/7 wide open. Art ------ Unsubscribe or change to/from Digest Mode at: http://www3.telus.net/~telyt/lrflex.htm Archives are at: //www.freelists.org/archives/leicareflex/