Nikon Autofocus Speedlight SB-24 - Manual (Page 116)

1. Select a ceiling or wall to bounce the flash from. In color
photography, only use bounce with white surfaces. Othenwise,
color photographs will come out with an unnatural color cast
similar to that of the reflecting surface.
• When tilting the flash head up, be sure to tilt it 60° (first click-
stop) or more to avoid uneven illumination.
2. Set the flash mode selector to TTL for TTL auto flash opera­
tion, then turn on the flash unit.
3. Select your aperture.
• In non-TTL auto flash mode, perform a test firing. After the
test, If the ready-light blinks to Indicate possible
underexposure at the aperture set on the lens, use a wider
aperture or reduce the bounce distance (by using an SC-17
cord), and test fire the flash again.