Focus; Focus Mode - Nikon D40 Guide User Manual

Focus can be adjusted automatically (see "Focus Model' 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).
Focus Mode
4B,
Choose how the camera focuses. AF-S and AF-C are available only in P,S,A, and M modes.
Focus mode Description
Camera automatically selects single-servo autofocus when subject is judged
Auto-servo AF
AF-A (default setting) 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.
Continuous- For moving subjects. Camera focuses continuously while shutter-release but-
AF-C
servo AF ton is pressed halfway. Shutter car] be released if camera is able to focus.
NIF Manual focus
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 iNuminator 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 assisl). The illuminator has a range of
about 0.5 3.0m ([ft. 8in. 9ft. 10in.); when using the iNuminator, use a
lens with a focal length of 24 200mm and remove the lens hood.
2--
Foc.s Mode
_
75)
Focus rnode car] also be selected from the Custom Settings menu.
Reference:Moreon Photography(AllModes)/Focus 23