You asked
Is the zeiss biogon t 28mm f 2 8 zm good for landscape?
Yes, it's a sensible landscape lens, with a couple of caveats. At 28mm on full frame it's a moderately wide view, good for scenes with a strong foreground and some sky. The guide's classic landscape choice is a wider lens, so if you want more sky and foreground drama, the Zeiss Biogon T* 21mm f/2.8 ZM is the more obvious pick.
Landscape shooting is slow, so manual focus isn't much of a drawback. You'll usually stop down to f/8 or f/11 anyway, which gives plenty of depth of field. It's a Leica M mount lens, so you'll need a compatible Leica M body.
Pair it with a sturdy tripod and a remote release, and you'll get the most out of it.
Written by Claude from this site's pages.