You asked
Is the om system m zuiko 14 42mm f 3 5 5 6 iii good for landscape?
Here is what the site says about that.
From OM System M.Zuiko 14-42mm f/3.5-5.6 III: OM System M.Zuiko 14-42mm f/3.5-5.6 III: A zoom lens by OM System for Micro Four Thirds cameras, 14-42mm f/3.5-5.6. The splash-proof update of the 14-42mm II R kit lens: the same element layout, and it focuses much closer. Specs - Maker: OM System - Focal length: 14-42mm (zoom) - Maximum aperture: f/3.5-5.6 (it gets darker as you zoom in) - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: no - Autofocus: ...
From Landscape: Landscape: Landscape photography is slow. The light does the work, the scene doesn't move much, and you can use a tripod. That changes what matters in a camera.
Quoted from this site's pages.