Nikon 25235 User Manual - Page 66
Focus Lock, Focus Area Frame, FUNC. Button
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5 6 Highlight option. Make selection. To choose focus zone size using the FUNC. button and sub-command dial: 1 Select Focus Area Frame for Custom Setting f4 (FUNC. Button; 170). 2 Press the FUNC. button and rotate the sub-command dial. Wide focus zones are used when WIDE is displayed in the control panel. Reference-Focus Focus Lock 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 ( 59). In single-servo AF, focus locks automatically when the in-focus indicator (●) appears in the viewfinder. In continuous-servo AF, focus must be locked manually using the AE-L/AF-L button. To recompose a photograph using focus lock: 1 Position the subject in the selected focus area and press the shutter-release button halfway to initiate focus. 56