3Custom Function SettingsN
C.Fn II
Enables or disables the
0: Enable
The
1: Disable
The
2: Enable external flash only
The
3: IR AF assist beam only
When an external Speedlite is attached, only with infrared AFassist beam will be emitted. This prevents the
With an
If the external Speedlite’s
C.Fn II
If focus cannot be achieved with autofocus, you can have the camera keep searching for the correct focus or have it stop searching.
0:Continue focus search
1:Stop focus search
If autofocus starts and the focus is far off or if focus cannot be achieved, the lens drive stops. This prevents the lens from becoming grossly out of focus due to focus searching.
Super telephoto lenses can become grossly out of focus during continuous focus search, taking more time to achieve focus the next time. Therefore, setting [1: Stop focus search] is recommended for super telephoto lenses.
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