Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 857)

Custom Controls
: Metering and AF Start
: Switch to Registered AF Function
: Switch to Registered AF Point
: Direct AF Point Selection
: Select AF Point, ( During Met)
: Set ISO, ( During Met)
: Image Size Selection
: One-Touch Image Quality Setting
: One-Touch Image Quality (Hold)
: Register/Recall Shooting Function
: Unlock While Button Pressed
: Switch to Custom Shooting Mode
: Cycle Between the Set Functions
: Illuminate Info in Viewfinder
You can assign frequently used functions to camera buttons or dials according to your
preferences for easy operations.
1.
Select [ 6: Custom Controls].
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