Panasonic GH2 Voigtlander 75mm f1.8 Heliar Classic
Back when I put together my "review" of the GH2 I did say that I would be having a look at how my M-mount lenses performed on it. However, other than some brief indoor tests with the Zeiss Planar 50mm f/2 - http://soundimageplus.blogspot.com/2010/12/panasonic-gh2-part-6-jpgs-50mm-f2-macro.html - I never got round to it. I've only been doing all this because my 90mm came back from Leica a few days ago and I thought I would see how it performed on the GH2. In the post mentioned I did say that the GH2 seemed to show up the difference in lenses more, but for some reason I never followed that up. I'm sure that was because of the results I got with all the other m4/3 cameras I used. I really couldn't see that M-mount lenses were significantly better than the 4/3 or m4/3 lenses I was using.
Yesterday I took out the Voigtlander 35mm f/1.4 and 75mm f/1.8, Zeiss 50mm f/2 lenses in addition to the 25mm f/0.95. Just like with the Leica 90mm, they all produced stunning results.