Hello, new here but I have a few questions that hopefully you all can help me with. First of all, I am a Nikon DSLR user. I have a D750 and a D7100. I am seriously considering selling the D750....most of the type of shooting I do I cannot tell any better image quality vs the D7100, and I like the longer reach of the crop camera. On top of that, I am getting tired of lugging around DSLR's and the large lenses whenever I travel. I do plan to keep my D7100 for sports and other things, but want to get lighter/smaller if possible for most of my shooting. I am thinking of getting an OM-D for travel and general use. I will only be using it for casual street/landscape shooting, and at times on a tripod. With that in mind: 1) I do not need weather sealing. 2) The best AF is not that important. 3) Image quality is important, because I will want to print. 4) I want the camera to be as small as possible. I am trying to figure out why the M10 Mark II would not satisfy my needs...it is smaller than the M1 or M5 Mark II, and the differences I see in these 3 cameras are things I don't feel are important to my needs. For image quality, it appears they have slightly different pixel counts on the sensors, yet they have the same type of sensor. Is IQ the same for all 3 of these cameras? Is there something else I am missing in the differences between these 3? Finally, I have really been researching printing with these smaller sensors. With upsizing, has anybody had any issues with going up to at least 20x30? Thanks for your time.