287
U
a4: Focus Tracking with Lock-On
This option controls how autofocus adjusts to sudden large
changes in the distance to the subject.
a5: AF Activation
This option controls whether both the shutter-release button and
the B button can be used to initiate autofocus, or whether
autofocus is only initiated when the B button is pressed.
Option Description
C 5 (Long)
When the distance to the subject changes abruptly, the
camera waits for the specified period before adjusting
the distance to the subject.
This prevents the camera
from refocusing when the subject is briefly obscured
by objects passing through the frame.
Y 4
D
3 (Normal)
(default)
Z 2
E 1 (Short)
Off
The camera immediately adjusts focus when the
distance to the subject changes.
Use when
photographing a series of subjects at varying distances
in quick succession.
Option Description
Shutter/
AF-ON
(default)
Autofocus can be performed with the B button or by
pressing the shutter-release button halfway.
AF-ON only Autofocus can only be performed using the B button.
