Olympus E-3 User Manual page 65

It is advisable to use a tripod for shots using this mode (or place
the camera on a solid surface) otherwise background lights and
objects will appear as wobbly streaks of light.
USING NON-OLYMPUS FLASH EQUIPMENT
The E-3 provides a PC synchronisation socket on the front left
face for triggering of studio flash equipment. Ensure the PC
conenctor cable has the correct polarity and set the appropriate
th
shutter speed to match the flash timing (Typically 1/60 second).
Non Olympus flash units to be connected to the camera ISO Hot-
shoe must be checked to ensure that they do not require a
triggering voltage of more than 240V. Higher trigger voltages
may cause damage to the camera's internal triggering circuit.
It is not advisable to use other flash units with dedicated contact
pins that are not designed for the Four-Thirds system as these
pins can cause shorting across the hot-shoe contacts as they are
slid into the shoe.
POWER USER TIP: Note that Olympus flash units have a mechanical
locking pin that engages with the camera when the locking ring is
rotated to lock. It is impossible to try and slide the flash off the camera
if this pin is engaged. Only turn the locking ring gently to secure the
flash on the shoe (UMPg81).
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