Is the canon ef 24mm f 1 4l ii usm good in low light?

Yes, for low light this lens is a strong choice. At f/1.4 it gathers far more light than a typical kit zoom, so you can keep shutter speeds up or ISO down. It isn't stabilised, though, so the wide aperture is doing most of the work in dim rooms.

It's at its best on full frame, where the 24mm framing is as marked and the bigger sensor adds about a stop of low-light advantage over APS-C. Good full frame bodies for it include the Canon EOS 5D Mark IV and the Canon EOS 6D Mark II. If you're on an APS-C body, the Canon EOS 80D still works well with it, but expect a bit less clean high ISO. For the reasoning, see Sensor sizes.

Written by Claude from this site's pages.