I have been commissioned to create a field guide which will require many landscape shots. The overall field guide will be of a standard format size but I have been asked to be able to produce large prints for museum level displays. They are thinking 20 by xx and maybe a larger panorama size (obviously stitched). I only have micro 4/3rds equipment and have never doubted the ability to produce nice prints. But, I have also never printed anything above 16x20. And have no means to do so now. In fact, my printer is limited to 13x19. So, I was asked by a friend if I should consider a FX camera such as the D610 (one she considers reasonably priced) with a top line wide zoom or a few hq prime wide angles. I pose this question to the folks here because I do rely on the advice found here when making decisions regarding my kit, etc. I have read the reviews of the 610 and it is obviously a fine camera but am not sold on this idea. I have always thought my EM5, EM1 and GX7 more than sufficient but, then again, I have never thought about huge format prints. She introduced a bit of doubt. Any suggestions or advice? Any help is greatly appreciated.