A friend recently bought Canon 6d so I decided to borrow it for a day with Canon 40mm f2.8 pancake and a rented Canon 135mm f2 L lens. This was my first experience shooting with Canon FF DSLR. I previously had experience using Canon T2i and T4i with various lenses. I've been Oly m43 shooter for almost 5 years now and definitely prefer the results vs. Canon APS-C. However, I found that Canon 6d produces dramatically better images with the above two lenses. I did not realize the gap between Canon crop and FF is that huge. In particular, I found jpegs looks way better than E-M10 with Oly 45mm and PL 25mm. I wouldn't even say that pictures are technically sharper but they look much sharper. More importantly the color and tonal gradations are in a different league which is easily noticeable on a small iphone screen. My postprocessed Oly images could not come close to 6d images with the cheap 40mm pancake. I am not gonna post comparisons, internet is full of them. This experience is making me re-evaluate whether to continue with m43. 6d with two lenses - 40mm pancake and 85mm portrait can make a reasonable budget FF combo. I saw no need to post-process any of the jpegs I got out of 6d - they were just right and only 5-7Mb each. The biggest problem for me was a hassle to use 6d - focus point selection, eye strain constantly using VF, poor LCD, no angle shooting, horrid video with crazy rolling shutter and insane moire (much much worse than E-M10). No equivalent of face/eye detect of Olympus which I find detrimental to portraits. More than half of all my 6d images were slightly out of focus. Still even out of focus images looked better than Oly... Size is actually not a big issue - 6d is very ergonomic, easier to hold than E-M10. I am curious if other forum members came to similar conclusions that Canon FF produces significantly better looking images than Oly even with the cheapest lenses? Even in perfectly good daylight? The cost between the systems is very similar and Canon's lenses are cheaper. I am considering to move to 6d entirely. Thoughts?