Olympus E-M1 - Manual (Page 132)

132 EN
Using separately sold accessories
12
 Wireless fl ash control range
Position the wireless fl ash units with
their remote sensors facing the camera.
The following illustration shows the
approximate ranges at which the fl ash
units can be positioned. The actual control
range varies with local conditions.
7m
5m
100° 100°
50° 50°
50° 50°
60° 60°
30° 30°
30° 30°
# Cautions
• We recommend using a single group of up to three remote fl ash units.
• Remote fl ash units cannot be used for second curtain slow synchronization or anti-shock
exposures longer than 4 seconds.
• If the subject is too close to the camera, the control fl ashes emitted by the camera fl ash
may affect exposure (this effect can be reduced by reducing the output of the camera
fl ash by, for example, using a diffuser).
• The upper limit of fl ash synchronization timing is 1/250 sec. when using the fl ash in
remote control mode.
Other external fl ash units
Use after connecting the synchro cord to the hot shoe
or external fl ash jack. When not using an external fl ash
terminal, be sure to attach the cap.
When attaching a third-party fl ash to the camera’s hot shoe
or external fl ash jack, be careful of the following points.
Cap
• Using obsolete fl ash units that apply currents of more than about 250 V to the X-contact
will damage the camera.
• Connecting fl ash units with signal contacts that do not conform to Olympus specifi cations
may damage the camera.
• Set the Shooting mode to M, set the shutter speed to a value no higher than fl ash
synchronous speed, and set ISO sensitivity to a setting other than [AUTO].
• Flash control can only be performed by manually setting the fl ash to the ISO sensitivity
and aperture values selected with the camera. Flash brightness can be adjusted by
adjusting either ISO sensitivity or aperture.
• Use a fl ash with an angle of illumination suited to the lens. Angle of illumination is usually
expressed using 35-mm format equivalent focal lengths.