You asked

Is the canon eos r7 good in low light?

The EOS R7 is an APS-C camera, so it won't match a full-frame body in dim light. My site's sensor guide puts full frame at roughly one stop of advantage over APS-C, so the R7 is fine for casual low-light shooting but not its strength. Its in-body stabilisation helps when you're shooting handheld. For more on the trade-off, see what a bigger sensor buys you.

Lens choice matters more here. For dim scenes, I'd look at these from the R7 list:

If low light is your main subject, the Canon EOS R6 is the full-frame body I'd point you to.

Written by Claude from this site's pages.

From these pages