This shootout from f/2.8 to f/11 compares the Canon RF 24-70mm f/2.8L IS USM to the Canon RF 14-35mm f/4L at 35mm with subject matter at far distance.
SHOOTOUT @ 35mm: Canon RF 24-70mm f/2.8L vs Canon RF 14-35mm f/4L: Alabama Hills Drainage, View to Mt Whitney
Includes images from f/2.8 to f/11 up to full camera resolution, plus crops.
We have a clear winner.
CLICK TO VIEW: Canon RF lenses
Cottonwoods and Willows in Alabama Hills Drainage, View to Mt Whitney
f8 @ 1/200 sec EFC shutter, ISO 100; 2021-11-10 14:09:19
Canon EOS R5 + Canon RF 24-70mm f/2.8L IS USM @ 34mm
ENV: Alabama Hills, altitude 4200 ft / 1280 m, 60°F / 15°C
RAW: LACA corrected, vignetting corrected, +20 Whites, +10 Clarity, diffraction mitigating sharpening
[low-res image for bot]