Nikon D780 DSLR Camera (Body Only) - Manual (Page 851)

805 Technical Notes
• The SB-910 and SB-900 support AF-assist illumination with 17–135 mm
AF lenses. During viewfinder photography, AF-assist illumination is
available with the focus points highlighted in the illustration.
• The SB-800, SB-600, and SU-800 support AF-assist illumination with
24–105 mm AF lenses. During viewfinder photography, AF-assist
illumination is available with the focus points highlighted in the
illustration.
Focus points for which AF-assist
illumination is available
Focus points for which AF-assist
illumination is available
Focal length
24–31 mm
Focal length
32–105 mm