Nikon SB-5000 Reference Manual page 134

Zoom head position in bounce flash
photography
The zoom head position during bounce flash photography can be locked
either at the maximum telephoto position or at the maximum wide-angle
position in the setup menu (0B-24).
• It is recommended to set the zoom head position at the maximum
telephoto position with a high ceiling, and at the maximum wide-angle
position with a low ceiling.
E
E-6