You asked

Is the zeiss loxia 35mm f 2 good on aps c?

Yes, it works on APS-C, but it behaves differently there. On a Sony E APS-C body it frames like a 52mm lens, so it's a slightly tight standard view. At f/2 it gives about the depth of field of f/3, so you get less background blur than on full frame.

It's manual focus only, so it suits a camera you're happy to focus by hand. Good APS-C bodies from its list include the Sony a6400, Sony a6700 and Sony a6100.

If you want autofocus and a wider standard view on APS-C, the first lenses guide recommends a 33-35mm f/1.4 to f/1.8 prime.

Written by Claude from this site's pages.

From these pages