Nikon SB-27 - Manual (Page 12)

Standby function
(Applicable to all camera groups)
12
When both the SB-27 and the camera are not in use, the
SB-27’s power automatically shuts OFF after approx. 80
seconds in order to conserve battery power. (Standby
function)
Setting the standby function
■ Cameras in Groups I thru VI (featuring TTL Auto Flash)
Set the camera setting switch (inside the SB-27's battery
chamber) to K.
—If it is set to ˚, the standby function will not work.
To turn the SB-27’s power ON again
Lightly press the shutter release button to turn the power ON.
—Pressing the open-flash button also turns the SB-27’s power ON. In this
case, the flash does not fire. (See page 18.)
Standby function will not work when:
• Shutter speed is set at M250 or B (Bulb) (for FA and FE2)
• Shutter speed is set at M90 or B (Bulb) (for FG and Nikonos V).
• Shutter speed is set at B (bulb) (for FM3
A ).
When your SB-27 is not in use or if you carry it in a bag, we
recommend setting the flash mode selector to OFF to avoid
turning the power ON accidentally.