Interesting little game http://guesstheformat.com/photo Found this on fujirumors, saying you can't tell the difference in bokeh (I think they meant DOF). So many of the comparisons are in NON-bokeh situations, but I find you can tell the difference if you look at DR (in dynamic DR situations), color richness (in dynamic color situations) and sometimes bokeh. I found I was more successful in comparing 43 vs. APS-C & FF, or compact to anything else. Less successful at APS-C vs. FF. Also, for clearly deeply stopped down photos in landscapes and even lighting, I just skip, since just about any camera could take those and adequately represent an image in this web-sized format. Also, some images are clearly HDRed or have other treatments, which makes it harder to judge. How did y'all do?