You asked
Is the canon eos r8 good in low light?
Yes, the R8 is a good low-light body. It has a full frame sensor, the same one as the R6 Mark II, and a bigger sensor gathers more light, so images stay cleaner at high ISO than on APS-C. The catch is that the R8 has no stabilisation in the body, so pick stabilised lenses for slow shutter speeds. For dim scenes, I'd look at:
- Canon RF 50mm f/1.8 STM, cheap and fast
- Canon RF 24-70mm f/2.8L IS USM, a fast, stabilised zoom
- Canon RF 35mm f/1.8 Macro IS STM, a fast, stabilised prime
If you want even more stabilisation, the Canon EOS R8 Mark II adds it in the body. For how sensor size affects low light, see what a bigger sensor buys you.
Written by Claude from this site's pages.