You asked
Is the sony fx30 good in low light?
The site doesn't rate the FX30's low-light performance directly. It's an APS-C camera with a 26-megapixel sensor, and its body has stabilisation, which helps when you shoot handheld in dim light. As a rule, APS-C gives up roughly one stop to full frame in low light, so the lens you pair with it matters a lot. If you shoot in the dark, look for wide apertures. On the FX30 list, I'd start with the Sigma 28-45mm f/1.8 DG DN Art, the Sigma 17-40mm f/1.8 DC Art, or the Sony FE 28-70mm f/2 GM. For the sensor trade-off, see Sensor sizes.
Written by Claude from this site's pages.