Hi everyone, my first post for a long time. I have Zeiss 50 1.4 and Nikon 50 F1.4 for my F3HP. Also Pentax 50 1.4 for K10d. Have 50 f2 summicron R on my R3. All are excellent at 5.6. Summicron is the best wide open, Zeiss and Nikon a tiny fraction less sharp but minimal differnce, wide open both are a littlesoft on corners, Pentax more so but acceptable. Of all lenses I would choose the Zeiss as colour rendition is superb and always seems to produce fabulous images. I also have 85 Zeiss on F3HP and isa stunning lens. I have no explanation as to why other users have found Zeiss soft at greater than 5.6, but then again I have a Leica zoom that is very poor, a waste of $600 on eBay. That's all folks! Have a wonderful day everyone. Reg ------ Unsubscribe or change to/from Digest Mode at: http://www.lrflex.furnfeather.net/ Archives are at: //www.freelists.org/archives/leicareflex/