Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 237)

5.
Set [Exposure smoothing].
You can suppress changes in image brightness during focus bracketing
by setting [
Exposure smoothing ] to [ Enable ], which compensates for
differences between the displayed and actual aperture value (effective
f/number), which varies by focal position.
6.
Take the picture.
To save your shots in a new folder, tap [ ] and select [ OK ].
Focus at the nearer end of your preferred focal range, then press the
shutter button completely.
Once shooting begins, release the shutter button.
The camera shoots continuously, shifting the focal position toward
infinity.
Shooting ends after your specified number of images, or at the far end
of the focal range.
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