The 61MP backside-illuminated CMOS sensor on board the Sony a7R IV is the first new chip in an R camera since 2015. Although it's new to the series, Sony began preparing for its inclusion in a future camera when it released the a7R III, so the a7R IV is able to use the same front-end LSI and Bionz X processor. Now that it's out in the wild we've been able to begin analyzing its performance – starting with our studio test scene. Check out how the a7R IV's 61 Megapixels perform against its competitors, below.

Please note that since it was originally printed, the portraits on our test chart have faded. As such, they should not be used to draw comparisons between the color output of different cameras. We are aware of the issue and we are working on a solution.