Nikon D5 100th Anniversary Edition User Manual - Page 136

AF-S focus mode: Focus locks automatically when the in-focus indicator (I) appears, and remains locked until you remove your finger from the shutter-release button. Focus can also be locked by pressing the center of the sub-selector as described on the previous page. 3 Recompose the photograph and shoot. Focus will remain locked between shots if you keep the shutter-release button pressed halfway (AF-S) or keep the center of the sub-selector pressed, allowing several photographs in succession to be taken at the same focus setting. Do not change the distance between the camera and the subject while focus lock is in effect. If the subject moves, focus again at the new distance. N A Locking Focus with the AF-ON Button During viewfinder photography, focus can be locked using either of the AF-ON buttons in place of the shutter-release button (0 102). If AF-ON only is selected for Custom Setting a8 (AF activation, 0 331), the camera will not focus when the shutter-release button is pressed halfway; instead, the camera will focus when an AF-ON button is pressed, at which point focus will lock and remain locked until either AF-ON button is pressed again. A See Also See Custom setting c1 (Shutter-release button AE-L, 0 336) for information on using the shutter-release button to lock exposure. 112