Nikon D40 User Manual download pdf (Page 38)

26 Reference: More on Photography (All Modes)/Focus

Focus lock can be used to change the composition after focusing, making it possible to

focus on a subject that will not be in a focus area in the final composition. It can also be

used when the autofocus system is unable to focus ( 27). Single or dynamic area AF is rec-

ommended when using focus lock ( 24).

The shutter-release button can not be used to lock focus in mode ( 19), continuous

shooting mode ( 32), or continuous servo autofocus ( 23). Use the AE-L/AF-L button to

lock focus. At other settings, focus will remain locked between shots if the shutter-release

button is kept pressed halfway.

Focus Lock

Controls used Shutter-release button/AE-L/AF-L button

Position the subject in the selected focus area and press the

shutter-release button halfway to initiate focus.

Check that the in-focus indicator (z) appears in the view-

finder. Focus will lock automatically when the in-focus indica-

tor appears, and remain locked while the shutter-release

button is pressed halfway. Focus can also be locked by press-

ing the AE-L/AF-L button while the shutter-release button is

pressed halfway. Focus will remain locked while the AE-L/AF-L

button is pressed, even if you later remove your finger from

the shutter-release button.

Recompose the photograph and shoot.

12—AE-L/AF-L ( 77)

This option controls the behavior of the

AE-L/AF-L button.

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Nikon D40 User Manual Page 38