Nikon D3400 Triple Lens Parent's Kit Owner's Manual

266 Technical Notes

The SB-5000, SB-910, SB-900, SB-800, SB-700, SB-600, SB-500, and 
SB-400 provide red-eye reduction, while the SB-5000, SB-910, SB-900, 
SB-800, SB-700, SB-600, and SU-800 provide AF-assist illumination with 
the following restrictions:

• SB-5000: In the case of 

24–135 mm AF lenses, AF-assist 
illumination is available with the 
focus points shown at right.

• SB-910 and SB-900: In the case of 

17–135 mm AF lenses, AF-assist 
illumination is available with the 
focus points shown at right.

• SB-800, SB-600, and SU-800: In the 

case of 24–105 mm AF lenses, 
AF-assist illumination is available 
with the focus points shown at 
right.

• SB-700: In the case of 24–135 mm 

AF lenses, AF-assist illumination 
is available with the focus points 
shown at right.

Depending on the lens used and scene recorded, the in-focus indicator 
(

I) may be displayed when the subject is not in focus, or the camera 

may be unable to focus and the shutter release will be disabled.