Is the fujifilm gfx100s good in low light?

The site doesn't have a low-light test of the Fujifilm GFX100S, so I can't give you a verdict based on measured results. It's a medium format camera with in-body stabilisation, which helps you hand-hold at slower shutter speeds in dim light.

The sensor guide says that for low light, a bigger sensor is the thing to look for, and this one is bigger than full frame. Lens speed matters just as much. For dim scenes I'd look at fast primes like the Fujifilm GF 55mm f/1.7 R WR or the Fujifilm GF 80mm f/1.7 R WR. As the lenses guide explains, primes gather far more light than zooms.

Written by Claude from this site's pages.