![](http://pdfasset.owneriq.net/7/cd/7cdf80ee-1cec-48de-a521-9560713347aa/7cdf80ee-1cec-48de-a521-9560713347aa-bg17.png)
C.Fn:
Setting Custom Functions
-
You can customize Speedlite features to suit your shooting preferences.
You do this with Custom Functions.
0
C.Fn-02-113: Convenient when you want to use the depth-of-field
preview button to check the depth of field.
0
C.Fn-08:
If the Speedlite or camera's AF-assist beam is
disabled, the AF-assist beam will not be emitted.
a
C.Fn-14:
You can change the information displayed on the LCD
panel when the shutter button is pressed halfway. This
function can be set only with Type-A cameras.