Canon Camera EOS R8 RF 24-50mm F4.5-6.3 IS STM Kit

Like the 5D Mark IV, the EOS R isn't entirely ISO-invariant. Pushing underexposed ISO 100 and ISO 200 shots by 6 and 5 stops in post-processing, respectively, yields higher noise levels than a native ISO 6400 exposure. However, by ISO 400 and above, the camera does for the most part exhibit ISO invariance.