Just got back from Namibia and took the M5 as my landscape/carry around camera and my 7DM2 as my wildlife camera. Worked great. I used the 18-55 kit lens from the M3 which was fine for the landscape shots. We did some night/star shots and I used my Sigma 18-34 f/1.8 with the adapter and manual focusing even though it's really not wide enough, I just didn't want to buy a wider fast lens for these shots because it's not something I'm really in to right now. Sigma worked fine except there was a little streaking of the stars because it wasn't quite wide enough. Here's some samples of the pics. I've got no regrets about using it! It handled the incredible dust as well as the 2 other weather sealed cameras I had along (7DMK2 and OLY OMD EM5 IR converted).
Catherine
Catherine