I've been thinking of writing a small review on the matter but not enough time/ determination yet.
I will add few words of wisdom on the matter as after having the E-M1iii for more than a year I decided to get the newest OM-1. My last two trips have been basically with the a MFT based system, first with both and the last just with the OM-1 (I did have a Sony RX10iv as a backup but mostly for the occasional distant wildlife).
The main reason here is because, after seeing what an iPhone can do, I decided to buy more into the computational photography and the OM-1 is probably the most advanced from this point of view from all the interchangeable lens cameras.
Granted, I can get "better" image quality from my Nikon Z7 and even from my Fuji X-T2 but there are things that the MFT does very well when it comes to travel.
The 12-100 F4 is the gold standard for a travel zoom and I'm supplementing with a 8-25 F4. If it was more day trips it would make sense to have a 7-14 or similar, but when traveling I have some redundancy as either can be good enough on it's own. With no computational tricks the image quality is good enough for most cases and I can make it punch above it's weight with few things:
- hand held high resolution: still not completely sold on the extra detail on average scenes, at least with Adobe software, but it does improve the noise for higher iso quite nicely
- handheld live ND: I tend to use this quite a lot, can make a midday scene with moving water more appealing
The stabilization system is the quite good, particularly for someone who doesn't seem to be so good at steady shots compared to the average person. What this gives me is a base iso camera, I rarely change the iso from the base, and with the bigger DOF from the smaller sensor I can have competitive landscape handheld results with most cameras. This also affords me to avoid a big tripod, if any and makes me more mobile.
I got 3 buttons mapped to:
1. focus shift
2. handheld high resolution
3. HDR, which I have it set as 3 shots at 2 EV intervals; LR does a very good job of combining them and I get a realistic shot with ~ 4+ stops of DR from the base iso, which is enough in most cases.
All these because the system is light and rugged and that is helpful when hiking/backpacking. My only comparable package is the Z7 with the 24-200 but the sharpness/contrast is not as good even if I like the drawing of the lens, and most importantly I need much higher shutter speeds to have it sharp.
