I had my M3 until last month when I got an 80D. The M3 was sufficient for my use in many ways but it's just too slow to operate and the grip is so small that sometimes I felt like I was having hand joint pain. But it had one huge advantage that I now miss so sorely--its size and weight. I used to be able to carry both 5dmk3 + M3. Now it's bit much to carry 5dmk3 + 80d.
The 80D is absolutely awesome. My initial plan was to ditch all the M lenses and stick to EF lenses. After two weeks of use I wanted to give efs lenses a try. I thought if the efs 18-135 stm is on par with efm 18-55 I'd be quite satisfied. In fact I got both efs 10-18 and efs 18-135 stm thinking I could have substantial weight reduction. I did. However the IQ of these two lenses are nothing compared to the efm 18-55 and efm 11-22. Returned both.
I wish we could have an 80D-like body with a full frame sensor, or an M3-like body with the responsiveness of the 80D. But no, you can't have everything perfect...
The 80D is absolutely awesome. My initial plan was to ditch all the M lenses and stick to EF lenses. After two weeks of use I wanted to give efs lenses a try. I thought if the efs 18-135 stm is on par with efm 18-55 I'd be quite satisfied. In fact I got both efs 10-18 and efs 18-135 stm thinking I could have substantial weight reduction. I did. However the IQ of these two lenses are nothing compared to the efm 18-55 and efm 11-22. Returned both.
I wish we could have an 80D-like body with a full frame sensor, or an M3-like body with the responsiveness of the 80D. But no, you can't have everything perfect...