This series from f/2.8 to f/11 explores field curvature and focus shift of the Canon RF 15-35mm f/2.8L IS USM at 15mm. Results here confirm and extend the findings discussed in Lundy Beaver Pond and High Peaks at Dusk.
Canon RF 15-35mm f/2.8L Aperture Series @ 15mm: Grey Mud Oozes from Cliff
Includes images from f/2.8 to f/11 up to full camera resolution, plus crops.
Grey Mud Oozes from Cliff
f8 @ 1/15 sec EFC shutter, ISO 100; 2021-11-05 16:28:26[low-res image for bot]
Canon EOS R5 + Canon RF 15-35mm f/2.8L IS USM @ 15mm
ENV: Pine Creek, altitude 8400 ft / 2560 m, 50°F / 10°C
RAW: LACA corrected, vignetting corrected, +20 Whites, +10 Clarity, diffraction mitigating sharpening