Archived posting to the Leica Users Group, 2000/03/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]As a result of comments I made on the Olympus mailing list, Gary Reese, who maintains a website of Olympus lens tests at http://members.aol.com/olympusom/lenstests/default.htm has tested a Leitz 50mm f/2 Summicron-M (4th generation 1979 "Mandler" design, multi-coated, on a Leica M2 using the self-timer), against an Olympus 50mm f/2 Zuiko Macro (multi-coated, on an OM-2000 using mirror and aperture prefire). Since I made those same comments on the LUG, I thought I'd post Gary's results FWIW. The two grades are evaluations of center and corner performance, respectively. For a further explanation of his methodology, see his site. At f/2: Zuiko B- B- / Summicron B- B+ At f/2.8: Zuiko B- B / Summicron B A- At f/4: Zuiko A- A- / Summicron B+ A- At f/5.6: Zuiko A- A / Summicron A A+ At f/8: Zuiko A+ A+ / Summicron A- A- At f/11: Zuiko A A- / Summicron B+ B+ At f/16: Zuiko A- B+ / Summicron B+ B+ - --Mike