Thermal Cut-Out - Nikon autofocus speedlight SB-900 User Manual

Thermal Cut-out

The SB-900 features thermal cut-out, which offers protection against raised operating temperature.
• This feature is controlled from the Custom Settings menu. (kC-24)
• The selected setting is shown by an icon.
Thermal Cut-out: On
• The temperature of the SB-900 is shown in three stages.
• If the temperature of the unit rises as a result of the flash being fired multiple
times in quick succession, a warning will be displayed and the SB-900 will
enter protective shutdown mode.
■
Temperature warning indicators
Low
• Wait until the SB-900 cools down.
• Operation can be resumed once the warning is no longer displayed.
Thermal Cut-out: Off
F
• The temperature of the SB-900 is shown in three stages.
• If the temperature of the unit rises as a result of the flash being fired
multiple times in quick succession, a warning icon will be displayed. If sound
is turned on, a warning beep will sound each time the camera shutter-
release button is pressed.
■
Temperature warning indicators
Low
• Stop firing and wait until the SB-900 cools down.
F–6
High
High