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D Notes on Optional Flash Units (Continued)
The SB-910, SB-900, SB-800, SB-700, SB-600, and SB-400 provide red-eye
reduction, while the SB-910, SB-900, SB-800, SB-700, SB-600, and SU-800
provide AF-assist illumination with the following restrictions:
• SB-910 and SB-900: AF-assist
illumination is available with
17–135 mm AF lenses, however,
autofocus is available only with
the focus points shown at right.
• SB-800, SB-600, and SU-800: AF-assist
illumination is available with
24–105 mm AF lenses, however,
autofocus is available only with
the focus points shown at right.
• SB-700: AF-assist illumination is
available with 24–135 mm AF
lenses, however, autofocus is
available only with the focus
points shown at right.
In exposure mode e, the maximum aperture (minimum f-number) is
limited according to ISO sensitivity, as shown below:
Maximum aperture at ISO equivalent of:
100 200 400 800 1600 3200 6400 12800
44.85.66.789.51113
If the maximum aperture of the lens is smaller than given above, the
maximum value for aperture will be the maximum aperture of the lens.
17–19 mm 20–105 mm
106–135 mm
24–34 mm 35–49 mm 50–105 mm
24–27 mm 28–135 mm