Nikon D4 User Manual - Page 123

NFocus This section describes the options that control how your camera focuses when photographs are framed in the viewfinder. Focus can be adjusted automatically or manually (0 108). The user can also select the focus point for automatic or manual focus (0 103) or use focus lock to focus to recompose photographs after focusing (0 105). Autofocus To use autofocus, rotate the focusmode selector to AF. Focus-mode selector N Autofocus Mode Choose from the following autofocus modes: Mode Description Single-servo autofocus: For stationary subjects. Focus locks when shutter-release button is pressed halfway. At default settings, AF-S shutter can only be released when in-focus indicator (I) is displayed (focus priority; 0 308). Continuous-servo autofocus: For moving subjects. Camera focuses continuously while shutter-release button is pressed halfway; if subject moves, camera will engage predictive focus tracking (0 99) AF-C to predict final distance to subject and adjust focus as necessary. At default settings, shutter can be released whether or not subject is in focus (release priority; 0 307). 97