We're told the chip in the EOS RP is similar to the one in the EOS 6D II, which means its performance is likely to be a little off the pace. We'd expect it to be excellent at high ISOs but to have comparatively limited dynamic range at low ISO settings. So don't expect to be able to shoot wide dynamic range scenes where you'd need to pull shadow information into the image: the tones not already included in the JPEG images will be noisier and less usable than contemporary rivals.