You asked
Is the olympus m zuiko 12mm f 2 good for landscape?
Yes, I think it's a good landscape lens. On Micro Four Thirds it frames like a 24mm on full frame, a classic width for wide scenes. It's small and light, so it's easy to carry on a long walk, and f/2 gives you more room than a slower lens at dusk.
It isn't stabilised, so use a tripod when the light fades. That suits landscape work anyway: the scene barely moves, so you can take your time. The landscape page covers what matters most in a camera for this kind of shooting.
Bodies that pair well with it:
- OM System OM-1 Mark II if you want the most capable body for landscapes.
- OM System OM-5 Mark II if you want a smaller, lighter kit for the trail.
- Panasonic Lumix G95 as a solid alternative if you're happy with Panasonic.
Written by Claude from this site's pages.