The Canon EOS R6 Mark II has “electronic focus breathing” correction, and it appears that at least some lenses need to be updated to take full advantage of this new feature.
The Canon EOS R6 Mark II has “electronic focus breathing” correction, and it appears that at least some lenses need to be updated to take full advantage of this new feature.
Would like to hear from RL experiences here.
Thanks for that, but didn't really get a good impression from that video.
+1
Given Macro users are a minority compared to users of 70-200 and other L lenses not surprised that 100mm L isnt getting any updates(though I would love to see Canon release non SA 100mm L macro).
Focus breathing correction on the R6II works in movie mode only, presumably by adjusting the video crop slightly to compensate.
A few of the more recent Sony alpha and FX cameras offer the feature, as well.
I don't recall ever seeing a firmware update that corrected focus shift. It's 2022 though, maybe it's in the works.
Most, if not all fast lenses have focus shift to some degree.
Alternatively, the focus distance of the lens could be shifted slightly based on the selected aperture. The problem with the latter approach is that the magnitude of the shift varies with both the extent to which the aperture changes relative to wide open and the distance to the subject, and the latter is very difficult for the camera to estimate at macro working distances.
Canon has already done something very similar for the RF70-200 front focussing issue, so I'm of the opinion that there isn't a technical reason stopping this, but a variance or political issue instead.