Nikon D7500 Users Manual - English for customers in the Americas - Page 329
Image quality, NEF RAW, Built-in AF-assist illuminator, Image size can not be changed
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Focus does not lock when shutter-release button is pressed halfway: Use A AE-L/AF-L button to lock focus when AF-C is selected for focus mode or when photographing moving subjects in AF-A mode. Can not select focus point: • Unlock focus selector lock (0 107). • Auto-area AF selected, or face-priority AF selected in live view; choose another mode (0 103). • Camera is in playback mode (0 225) or menus are in use (0 250). • Press shutter-release button halfway to start standby timer (0 54). Can not select AF mode: Manual focus selected (0 100, 115). Can not select AF-area mode: Manual focus selected (0 100, 115). Image size can not be changed: Image quality set to NEF (RAW) (0 97). Camera is slow to record photos: Turn long exposure noise reduction off (0 255). AF-assist illuminator does not light: • AF-assist illuminator does not light if AF-C is selected for autofocus mode (0 100) or if continuous-servo autofocus is selected when the camera is in AF-A mode. Choose AF-S. If an option other than auto-area AF is selected for AF-area mode, select center focus point (0 110). • The camera is currently in live view. • Off is selected for Custom Setting a9 (Built-in AF-assist illuminator, 0 261). • Illuminator has turned off automatically. Illuminator may become hot with continued use; wait for it to cool down. Smudges appear in photographs: Clean front and rear lens elements. If problem persists, perform image sensor cleaning (0 289). 303