28 Reference: More on Photography (All Modes) / FocusMore on Photography (All Modes)FocusFocus can be adjusted automatically (see “ Autofocus,” below) or manually ( 32). The usercan also select the focus area for automatic or manual focus ( 30) or use focus lock to focusto recompose photographs after focusing ( 31).Autofocus Controls used: Focus mode selectorWhen the focus mode selector is set to AF, the camera focuses au-tomatically when the shutter-release button is pressed halfway. Insingle-area AF, a beep will sound when the camera focuses. Nobeep will sound when AF-A is selected in (sports) mode or whencontinuous-servo autofocus is used (note that continuous-servoautofocus may be selected automatically when shooting movingsubjects in AF-A autofocus mode).If the lens does not support autofocus or the camera is unable to focus using autofocus, usemanual focus ( 32).A-M Selection/Autofocus with Manual PriorityIf the lens is equipped with A-M selection or an M/A-M switch, select A(autofocus) or M/A (autofocus with manual priority).The AF-Assist IlluminatorIf the subject is poorly lit, the AF-assist illuminator will light automatically toassist the autofocus operation when the shutter-release button is pressedhalfway. The AF-assist illuminator will not light in , , or modes or ifOff has been selected for Custom Setting 4 (AF assist; 87). The illumina-tor has a range of about 0.5–3.0 m (1 ft. 8 in.–9 ft. 10 in.); when using theilluminator, use a lens with a focal length of 24–200 mm and remove thelens hood.1 — Beep ( 86)This option can be used to turn the beep speaker on or off.More on Photography (All Modes)Focus