Nikon D3x Mode D'Emploi

309

U

This option controls how autofocus adjusts to sudden large 
changes in the distance to the subject.

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.

C Long

When the distance to the subject changes abruptly, the 
camera waits for the specified period (long, normal, or 
short) 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.

D

Normal 
(default)

E Short

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.

(default)

Autofocus can be performed with the 

B button or by 

pressing the shutter-release button halfway.

B only

Autofocus can only be performed using the 

B button.