Nikon 25420 Manuale Utente
Reference: More on Photography (All Modes)/Focus
23
Focus
Focus can be adjusted automatically (see “Focus Mode,” below) or manually ( 28). The
user can also select the focus area for automatic or manual focus ( 24, 25) or use focus lock
to focus to recompose photographs after focusing ( 26).
user can also select the focus area for automatic or manual focus ( 24, 25) or use focus lock
to focus to recompose photographs after focusing ( 26).
Focus Mode
Choose how the camera focuses. AF-S and AF-C are available only in P, S, A, and M modes.
Controls used
The AF-Assist Illuminator
If the subject is poorly lit, the AF-assist illuminator will light automatically
to assist the autofocus operation when the shutter-release button is
pressed halfway. The AF-assist illuminator will not light in continuous-
servo AF or manual focus mode, in
to assist the autofocus operation when the shutter-release button is
pressed halfway. The AF-assist illuminator will not light in continuous-
servo AF or manual focus mode, in
, or modes, or if Off has been
selected for Custom Setting 9 (AF assist). The illuminator has a range of
about 0.5–3.0m (1ft. 8in.–9ft. 10in.); when using the illuminator, use a
lens with a focal length of 24–200mm and remove the lens hood.
about 0.5–3.0m (1ft. 8in.–9ft. 10in.); when using the illuminator, use a
lens with a focal length of 24–200mm and remove the lens hood.
2—Focus Mode (
75)
Focus mode can also be selected from the Custom Settings menu.
Focus mode
Description
AF-A
Auto-servo AF
(default setting)
(default setting)
Camera automatically selects single-servo autofocus when subject is judged
to be stationary, continuous-servo autofocus when subject is judged to be
moving. Shutter can be released if camera is able to focus.
to be stationary, continuous-servo autofocus when subject is judged to be
moving. Shutter can be released if camera is able to focus.
AF-S
Single-servo AF
For stationary subjects. Focus locks when shutter-release button is pressed
halfway. Shutter can be released if camera is able to focus.
halfway. Shutter can be released if camera is able to focus.
AF-C
Continuous-
servo AF
servo AF
For moving subjects. Camera focuses continuously while shutter-release but-
ton is pressed halfway. Shutter can be released if camera is able to focus.
ton is pressed halfway. Shutter can be released if camera is able to focus.
MF
Manual focus
User focuses manually ( 28).