Nikon SB-28 - Manual (Page 42)

In Non-TTL Auto Flash shooting, the SB-28’s light output
automatically changes to match the flash-to-subject distance. The
light, however, is not measured through the lens, but is measured
by the light sensor on the front of the SB-28.
—The SB-28 can be used in Non-TTL Auto Flash mode with any Nikon camera/lens
combination at any ISO film speed.
—You can choose apertures from f/2 to f/16 at ISO 100.
1 Select the flash mode.
—Press the
µ button until ˙ appears on the LCD panel.
2 Select the aperture.
—Press the
[ button, then press the { or } button to change the
aperture, bringing the subject within the flash shooting distance range.
Flash shooting distance
Aperture value
42
Non-TTL Auto Flash
˙
Mode
For cameras in all groups
Flash settings