You asked
What is the sony fe 70 200mm f 4 g oss good for?
The Sony FE 70-200mm f/4 G OSS is a stabilised telephoto zoom for full-frame Sony E cameras, and I think it's a sensible everyday telephoto. On full frame it covers 70-200mm as marked. On an APS-C body like the a6400 it frames like 105-300mm, which gives you useful reach there too.
It earns its keep in a few places:
- Sport from the sideline and larger animals, where 70-200mm is a solid starting point (Wildlife and sport).
- Landscapes, picking out distant ridges and layers of hills. The f/4 aperture keeps it lighter than the f/2.8 versions (Landscape).
- Environmental portraits from a distance. At f/4 it gives less background blur than f/2.8 zooms, so it suits scenes better than tight headshots (Portraits).
Full details are on the lens page.
Written by Claude from this site's pages.