Photodo is a site dedicated to test lenses, the "old Photodo" site has tests on film cameras lenses only, you can agree or disagree with the results, but they use the same tests and criteria for every lens: The best tested Rollei lens is the Xenotar Schneider 2.8/80 for the 6000 cameras (TLR lenses are not included ;-), it got grade 4.1 from 0 to 5. The best tested Leica M lens is the Elmarit M 90/2.8, it got grade 4.5 from 0 to 5. Now you need to consider that both lenses were tested as a whole and that the Xenotar is used for the 6x6 format and that the quality image for the Xenotar is exceptional for this format, comparable to the 35mm Leica lens and having the possibilty to enlarge the image several times larger than the Leica image keeping the print quality. But if you take the best part of the Xenotar lens to use it for the 35mm format, I can assure that the image quality will be at least as good as the Leica one if not even better. http://old.photodo.com/prod/lens/detail/RoSchneiderXenotar80-721.shtml http://old.photodo.com/prod/lens/detail/LeElmarit-M90_28-245.shtml and we are talking about one of the best Leica lenses, if we consider other 35mm lenses the better performance for a normal MF Rollei lens used for 35mm like with the Rolleikin is clear, the difference will be very clear really using the lenses wide open or close to wide open.- Carlos --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list