Nikon 25432 User Manual - Page 114
Contrast-Detect Autofocus, Focusing with Contrast-Detect Autofocus
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6 Take the picture. Press the shutter-release button the rest of the way down to take the picture. If continuous high speed or continuous low speed is selected for [Release mode], the monitor will turn off while the shutter-release button is pressed. The frame advance rate for continuous mode is the same as that selected for standard shooting. k D Contrast-Detect Autofocus The camera will not continue to adjust focus while the B button is pressed in continuous-servo autofocus mode. In both single-servo and continuous-servo autofocus modes, the shutter can be released even when the camera is not in focus. D Focusing with Contrast-Detect Autofocus Contrast-detect autofocus will take longer than normal (phase-detection) autofocus. In the following situations, the camera may be unable to focus using contrast-detect autofocus: • The camera is not mounted on a tripod • The subject contains lines parallel to the long edge of the frame • The subject lacks contrast • The subject in the focus point contains areas of sharply contrasting brightness, or the subject is lit by spot lighting or by a neon sign or other light source that changes in brightness • A cross (star) filter or other special filter is used • The subject appears smaller than the focus point • The subject is dominated by regular geometric patterns (e.g., windows in a skyscraper) • The subject is moving 88