You asked
Is the sony e 15mm f 1 4 g good for landscape?
The Sony E 15mm f/1.4 G is a reasonable choice for landscape, with one caveat. It's an APS-C lens, so on APS-C bodies it frames like 22mm on full frame, which is a comfortable wide angle for scenes like coastlines, streets, and big skies. The f/1.4 speed is more than landscape needs, since most landscape work is shot stopped down. The lens also isn't stabilised, which doesn't matter much when you're on a tripod, as landscape suggests.
On the full-frame Sony E bodies, it works in APS-C crop mode at fewer megapixels. That's a real cost for landscapes, where you often want every pixel for detail. For that reason I'd pair it with an APS-C body such as the Sony a6700 or the Sony a6600, where it runs at full resolution.
Written by Claude from this site's pages.