User Manual

Positioning the Slave and Remote Flash Units
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• The wireless optical TTL sensor is located on the front of the VC-310. Make sure that the sensor is facing
the master ash and that there are no obstructions between the two units.
• When photographing outdoors or in bright ambient light, the optical sensors may be overwhelmed by
ambient light, which will lower their sensitivity.
• To avoid creating interference between ash units, using more than three in a single group is
not recommended.