Nikon D3400 Kit Owner's Manual

284 Technical Notes

AF-assist illuminator does not light:
• AF-assist illuminator does not light if AF-C is selected for autofocus 

mode (

0 69) or if continuous-servo autofocus is selected when the 

camera is in AF-A mode. Choose AF-S. If an option other than 
e (Auto-area AF) is selected for AF-area mode, select center focus 
point (

0 74, 76).

• The camera is currently in live view.
• Off is selected for Built-in AF-assist illuminator (

• Illuminator has turned off automatically. Illuminator may become hot 

with continued use; wait for it to cool down.

: Image quality set to NEF (RAW) (

0 85).

:

• Depending on shooting conditions and memory card performance, 

access lamp may light for up to about a minute after shooting ends in 
continuous release mode.

• Turn noise reduction off (