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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:
100
4
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.
l
196
Maximum aperture at ISO equivalent of:
200
400
4.8
5.6
17–19 mm 20–105 mm 106–135 mm
24–34 mm 35–49 mm 50–105 mm
24–27 mm 28–135 mm
800
1600
6.7
8
3200
6400
9.5
11
12800
13
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