You asked
Is the olympus m zuiko 17mm f 1 8 good in low light?
Yes, for low light the 17mm f/1.8 is a sensible choice. Its f/1.8 aperture lets in far more light than a typical kit zoom, and on Micro Four Thirds it frames like a 34mm lens on full frame. Wide-open, it also gives roughly the depth of field of f/3.6 there, so you get a bit more forgiveness on focus.
It isn't stabilised, though, so in dim rooms you'll be relying on your camera body's stabilisation, if it has one, or a faster shutter speed. It fits bodies such as the OM System OM-1 Mark II and OM System OM-5 Mark II.
If you want even more light, the Olympus M.Zuiko 17mm f/1.2 PRO is a faster, weather-sealed option. For why fast primes matter so much indoors, see primes or zooms.
Written by Claude from this site's pages.