Canon EOS 1 V HS User Manual
Page 102
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Custom Function Settings
C.Fn-4
AF activation/AE lock
You can achieve focus and obtain the correct exposure separately. You
can also stop the Al Servo AF operation temporarily.
C.Fn
Function
No.
Description
C.Fn-4
AF activation/
AE lock
• : Shutter button
• ; AE lock button
0
•AF
•AEL
Shutter button/AE lock button
1
•AEL
•AEAF
AE lock button/Shutter button
2
•AF
•AFL
Shutter button/Disabled
(AF lock)
3
•AE
•AEAF
AE lock button/Disabled
(-^Real-time AE)
C.Fn-4-1:
You can focus at one location and obtain AE lock at
another location in the scene.
Press the <*> button to
autofocus and press the shutter button halfway to attain AE
lock. (->p.71)
C.Fn-4-2; In the Al Servo AF mode,
you can press the <*> button to
stop the Al Servo AF operation momentarily.
It prevents the
AF from being thrown off by any passing obstruction coming
between the camera and subject. The exposure is set when the
picture is taken, (^p.36)
C.Fn-4-3:
This is useful for subjects which keep moving and
stopping repeatedly.
In the Al Servo AF mode, you can press
the <*> button to start or stop the Al Servo AF operation. The
exposure is set when the picture is taken. Thus, the optimum
focusing and exposure are always ready for the decisive
moment.
C.Fn-4 and C.Fn-19-0/1/2 (^p.110) both have AF start/stop and AE lock
functions. If you have set both these Custom Functions and you execute both
Custom Function operations, the latter operation will not work. The only
exception will be when AF stop is executed after AF start.
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