The AF-ON Buttons

For the purpose of focusing the camera, pressing either of the AF-ONbuttons has the same effect as pressing the shutter-release button halfway (the AF-ONbutton for verti- cal shooting can only be used when the shutter-release button for vertical shooting is unlocked).

a1—AF-C Mode Priority (185)

If Focus is selected for Custom Setting a1 (AF-C mode priority), photographs can be taken in continuous servo-AF only when the camera is in focus. Select FPS rate + AF for improved focus during continuous shooting.

a2—AF-S Mode Priority (185)

If Release is selected for Custom Setting a2 (AF-S mode priority), photographs can be taken in single servo-AF even when the camera is not in focus.

a5—AF Activation (188)

If AF-ON only is selected for Custom Setting a5 (AF activation), the camera will only focus when one of the AF-ONbuttons is pressed, not when the shutter-release button is pressed halfway.

a8—Vertical AF-ON (190)

Custom Setting a8 (Vertical AF-ON) controls whether the AF-ONbutton for vertical shooting is used to initiate autofocus, select the focus area, or both.

c2—AE-L/AF-L (195)

If desired, the AE-L/AF-Lbutton can perform the same function as the AF-ONbutton.

Taking Photographs—Focus

75

Page 89
Image 89
Nikon D2Xs AF-ON Buttons, A1-AF-C Mode Priority, A2-AF-S Mode Priority, A5-AF Activation, A8-Vertical AF-ON, C2-AE-L/AF-L