I have to disagree with the claim that MFT is not "on par" with a FF 5D. I've made exactly this transition--from the original 5D with the 24-105L lens to the EM5 with the Panasonic 7-14 f/4, Panasonic 14mm f/2.5, Panasonic 20mm f/1.7, and two Olympus kit lenses (14-42 II and 45-150) that came with the EPL2I bought a year ago. I also do mostly travel and landscape photography. I've found that at print sizes up to 15x20 (my largest size) prints from the EM5 are at least as good as those as the 5D. Getting good results requires a bit more attention to technique with the smaller camera, but at my print sizes it is entirely capable of equaling the 5D. Given all the other advantages of the newer and smaller camera, I'm very happy with the switch.