This series evaluates performance of the Canon RF 24-105mm f/4L IS USM at 39mm on a near to far distance scene on the 30-megapixel Canon EOS R.
Canon RF 24-105mm f/4L IS Aperture Series @ 39mm: View Down Aspen-Lined Trail to Spire Lake Peak
Includes images up to full camera resolution from f/4 through f/11. Includes a tip on how to optimize sharpness in such a scene given the focus shift and field curvature behavior.
View Down Aspen-Lined Trail to Spire Lake Peak
f9 @ 1/50 sec IS=off, ISO 100; 2018-10-13 14:42:28[low-res image for bot]
Canon EOS R + Canon RF 24-105mm f/4L IS USM @ 39mm + polarizer Zeiss
ENV: Old mining road approaching cutoff to Bear Lake, altitude 10000 ft / 3048 m, 50°F / 10°C
RAW: LACA corrected, diffraction mitigating sharpening