Canon EOS R5: Inconsistent Focus with Canon RF 50mm f/1.8 STM, and Maybe Other Lenses Too
The Canon EOS R5 has erratic results with autofocus on the Canon RF 50mm f/1.8 STM, and likely the same problem with the Canon RF 35mm f/1.8 STM. Perhaps with other lenses as well, because I have enough unexplained backfocus results that I have no other good explanation.
Issue: the camera focuses correctly on the first attempt, but initiating autofocus again (shutter AF or AF-ON) delivers a backfocused image that leaves the subject visibly blurred.
Canon EOS R5: Inconsistent Focus with Canon RF 50mm f/1.8 STM
I shown an example, with crops.
Aeriel view of Pine Creek Tungsten Mine
[low-res image for bot]
f1.8 @ 1/6400 sec EFC shutter, ISO 100; 2021-11-05 14:29:16
Canon EOS R5 + Canon RF 50mm f/1.8 STM
ENV: Pine Creek, altitude 8400 ft / 2560 m, 45°F / 7°C
RAW: LACA corrected, vignetting corrected, pull 0.5 stops, +50 Shadows, +20 Whites, +20 Clarity
Canon EOS R5 + Canon RF 50mm f/1.8 STM
ENV: Pine Creek, altitude 8400 ft / 2560 m, 45°F / 7°C
RAW: LACA corrected, vignetting corrected, pull 0.5 stops, +50 Shadows, +20 Whites, +20 Clarity
[low-res image for bot]
