Nikon D750 Product Manual - Page 467

The SB-910, SB-900, SB-800, SB-700, SB-600, SB-500, 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, 17-19 mm however, autofocus is available only with the focus points shown at right. 20-105 mm 106-135 mm • 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. 24-34 mm 35-49 mm 50-105 mm • 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. 24-27 mm 28-135 mm 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. In mode P, 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 4 4.8 5.6 6.7 8 9.5 11 13 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. 439