Canon RF 15-35mm f/2.8L Aperture Series @ 27mm: Riparian Tree Trunks
This series from f/2.8 to f/11 explores performance of the Canon RF 15-35mm f/2.8L IS USM at 27mm, which is in the middle of the zoom range and thus likely to be relatively low in distortion and high in overall performance (wide angle zooms are typically strong from the wide end to the middle of the range).
Canon RF 15-35mm f/2.8L Aperture Series @ 27mm: Riparian Tree Trunks
Includes images from f/2.8 to f/11 up to full camera resolution, plus crops.