I just saw a very good review on Pbase about various ‘legacy’ 50mm lenses on the Panasonic GF1.
Following lenses have been tested (click on the link to see the lens on eBay):
1. Canon 50mm f1.2 LTM
2. Canon 50mm f1.4 LTM
3. Leica 50mm Summilux f1.4
4. Jupiter 3 50mm f1.5
5. Leica Summicron 50mm f2
6. Leica Summicron 50mm f2
7. Voigtlander Heliar 50mm f2
8. Leica Elmar 50mm f2.8
It has been a huge surprise for me to read from the test that the Coigtländer Heliar showed the post performance! Do you agree?
He also tested the Black&White performance.
One more test is available here: http://www.pbase.com/nickdemarco/test_3_final