Hey guy's, I used a series 6 (44mm) to 43mm step-down ring to use commonly available 43mm filters on an earlier 50 Summicron. That way, the snap-on hood fit perfectly. On another vein, I have a bellows-type lens hood that has a 52mm ring attached and I've also used a series 6-to-52mm ring so that I could use the hood and my coated Nikon filters on the cron. Works great. The bellows hood adjusts from 28mm~135mm coverage. I'll take some digital pics of it and post to my leica file on Leica-Gallery in the near future for all interested. Art Tafil ------ Unsubscribe or change to/from Digest Mode at: http://www3.telus.net/~telyt/lrflex.htm Archives are at: //www.freelists.org/archives/leicareflex/