Using left eye for viewfinder
3
Henry Richardson wrote:
I shoot with my left eye and there has never been a camera with an eye-level viewfinder in the 50 or so years I have been photographing that has been ideal. Naturally, the camera companies always prioritize making the ergonomics best for people who shoot with their right eye since that is the majority. With m4/3 though using my left eye means that the controls on the back on the right side are sometimes rather inconvenient and slow to use because my face is over there too and makes quick adjustments with my thumb not so good. It also means that although I would like to use the touch AF and ability to move the AF point around with my thumb I always have to disable that function because my face causes the AF point to randomly jump around at the most inopportune times.
I have used various 35mm SLRs and various DSLRs over the years. All bigger than the E-M1II and G9. My most used DSLR was my Sony A700 with IBIS, a pretty good Sony 12mp sensor, and many rather nice features. I traveled with it quite a bit and got some good photos with it in various countries. While a larger camera such as the A700 makes using my left eye better (because there is more space on the right side of the back for my thumb to get at controls while looking in the viewfinder) it still isn't great and nowhere near as good as it is for right eye shooters since the cameras are all designed for them. Note that the A700 does not have a touch screen with touch AF, touch movement of the AF point, etc. The joystick/button on the back is the furthest over my thumb had to go while looking through the VF. I had it programmed for back button AF so that a press of that combo joystick/button would AF and the shutter button would just take the photo. I would like to use the m4/3 touch screen on my cameras, but because I use my left eye I have to keep it turned off. And also all the other rear controls meant to be used with your thumb while looking through the EVF.

I was, I think, the first person on these forums to hold an E-M5 when it came out in Tokyo in March 2012. After several times playing around with it I made this post and a long thread. My primary ergonomic disappointment was with regards to using it with the left eye. The E-M10, E-M10II, E-M5II, etc. were slightly better, but still not all that good.
E-M5 ergonomics are disappointing
https://www.dpreview.com/forums/post/41089743
I think a camera sort of like I described, i.e., E-P6 with pop-up EVF in the corner would probably work well enough that the touch screen AF could even be used. Still a small camera that we like, but better for left eye shooters and just as good for right eye shooters.