These examples with the Canon RF 24-70mm f/2.8L IS USM in the Eastern Sierra. I’ll add more as time allows on my trip (I am loathe to process images inside my van whilst the warm weather lasts here in November).
Canon RF 24-70mm f/2.8L Examples: Eastern Sierra
Includes images up to full camera resolution. WOW!
UPDATE: the telephoto end of the Canon RF 24-70mm f/2.8L has sharpness problems, as zoom lenses often do. See the example Hiker and Dog Descending Trail, which shows a major difference in left side vs right side sharpness.
Hiker with Dog Descending Trail, Pine Creek
f5.6 @ 1/13 sec handheld IS=on EFC shutter, ISO 100; 2021-11-05 17:27:21[low-res image for bot]
Canon EOS R5 + Canon RF 24-70mm f/2.8L IS USM @ 61mm
ENV: Pine Creek, altitude 7800 ft / 2377 m, 58°F / 14°C
RAW: LACA corrected, vignetting corrected, +20 Whites, +20 Clarity
Bare Cottonwood, Sunset over Eastern Sierra
f8 @ 1/4 sec handheld IS=on EFC shutter, ISO 100; 2021-11-06 18:03:44[low-res image for bot]
Canon EOS R5 + Canon RF 24-70mm f/2.8L IS USM @ 24mm
ENV: Bishop CA, altitude 4000 ft / 1219 m, 68°F / 20°C
RAW: vignetting corrected