Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 266)

Distortion Correction
Distortion (image warping) can be corrected.
Caution
Specifying distortion correction may subtly change the angle of view, resulting in
images that are cropped a little and seem slightly less sharp.
The amount of image cropped may vary between still photos and movies.
Note
With RF or RF-S lenses, distortion correction during movie recording is supported.
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