Is the tokina atx m 56mm f 1 4 good in low light?

Yes, for low light it's a strong choice, with one caveat. At f/1.4 it gathers a lot of light, and on APS-C it frames like 84mm on full frame, which makes it a good portrait lens in dim rooms. The Lenses guide makes the same point: a fast prime gathers far more light than any kit zoom.

The caveat is that it isn't stabilised, so in dim light you'll need a faster shutter speed or a steady surface. Since it is an APS-C lens, I'd pair it with an APS-C body rather than a full-frame Sony, where it only works in crop mode. Good options from its list include the Sony a6700, the Fujifilm X-T5, and the Fujifilm X-H2S. The full lens page has every body it fits.

Written by Claude from this site's pages.