The first versions of the EOS R3 are, as already known, currently in use at the Olympic Games in Tokyo. According to DPReview, we now have more information about the built-in sensor. According to a photo editor, it has a resolution of 6000 x 4000 pixels, which translates to only 24 megapixels. The files have a size of 14-16MB. This also corresponds to the information taken from the EXIF information of some shots taken by photographer Jeff Cable, who actually uses an R3.
Compared to the competing models from Sony (Alpha A1) and Nikon (Z9), the R3 thus has less than half the sensor resolution, which I personally consider extremely disappointing - this definitely makes it a no-go for me. 24 megapixels may be enough for sports documentary photography, but other than that, I don’t think it’s up to date in higher-end camera bodies. My trusty 5DS R is therefore not yet obsolete….