It's relatively compact and less expensive than the Sony A7R IV,
but the new Sigma fp L has a number of issues which impact its
usability:

- no IBIS (how to get sharp 61MP images without a tripod?)
- no grip (try using it with a large lens)
- no in-built viewfinder. And the optional external one is
really bulky.
- flash sync limited to 1/15s (no mechanical shutter) and
rolling shutter issues
- and the battery is small (it's rated for 240 shots)

--
Alfred Molon

Olympus 4/3 and micro 4/3 cameras forum at
https://groups.io/g/myolympus
https://myolympus.org/ photo sharing site