Greetings, I'm thinking about getting a 35mm Summilux or Summicron R but also thinking about using it on my Sigma, 1.7x crop and/or four thirds, 2.0x crop. My question is, are there added/different problems on smaller than FF sensors using wider angle lenses than mounting something like a 50mm or 90mm lens? Walter -- Walter Krämer walter.kramer@xxxxxxxxxxxx walter.kramer@xxxxxxxxxxxxxxxx Bus: 03 9854 2463 Mob: 0414 884 965 ------ Unsubscribe or change to/from Digest Mode at: http://www.lrflex.furnfeather.net/ Archives are at: //www.freelists.org/archives/leicareflex/