Custom Function Setting Items - Canon EOS 250D Advanced User's Manual

Custom Function Setting Items

Custom Functions are organized into three groups based on the function
type: C.Fn I: Exposure, C.Fn II: Drive, C.Fn III: Operation/Others.
C.Fn I: Exposure
C.Fn-1 Exposure level increments
0: 1/3-stop
1: 1/2-stop
Sets 1/2-stop increments for the shutter speed, aperture, exposure
compensation, AEB, flash exposure compensation, etc. Useful when
1/3-stop increments are too fine.
When set to 1, exposure level display is as follows in the viewfinder.
z
C.Fn-2 ISO expansion
0: Off
1: On
When you set the ISO speed, you can set "H" (equivalent to ISO 51200)
for still photos and "H" (equivalent to ISO 25600) for movies. Note that
if [z: Highlight tone priority] is set to [Enable] or [Enhanced], "H"
cannot be selected.
For 4K movies, the ISO speed range is ISO 100–6400, even when [ISO
z
expansion] is set to [1: On].
C.Fn-3 Safety shift
0: Disable
1: Enable
For automatic adjustment of the shutter speed and aperture value
to bring the exposure level closer to standard exposure if standard
exposure would not be available otherwise under your specified shutter
speed or aperture value in <s> or <f> mode.
448
N