To make a long story short, I used the GH1 with great result and waited for the GH3. Then I just recently add a great offer to buy a used GH2 and got it today. I install the latest flow motion patch and did some tests. I immediately felt that it seemed the GH2 was getting darker in shots than my GH1 (max lattitude patch) so i did some test with the same lenses with the exact same framing. The GH2 is 1-2 stop behind? Is that a matter of settings? (I use smooth settings based for both GH, with -2 in most parameters) or because of the difference in patches? Sorry if my observation is an obvious one but I would like to understand what is hapening and learn :) Thanks!