See my Canon mirrorless wishlist.
This series evaluates the Canon RF 28-70mm f/2L at 37mm at medium distance on the 30-megapixel Canon EOS. Sharpness along with depth of field and field curvature are examined. It also confirms (at closer range) a behavior observed in Bird Bath Courtyard.
Includes images up to full camera resolution from f/2 through f/11.