E-11EWireless Multiple Flash-unit PhotographyChecking Status in Wireless Multiple Flash-unit PhotographyMaster flashunitRemote flashunit Speedlight statusGoes out andlights up whenready to fireFlashes quicklyfor approx.6 sec.• Non-TTL auto flash control modeis set on the master flash unit.Change the flash control mode toan operable flash control mode.• The remote flash unit light sensorhas failed to receive the commandlight from the master flash unit.This is because the light sensorcannot detect when to stop firingin sync with the master flash unit,either due to a reflection from theremote flash unit itself or light fromanother remote flash unit thatmay have entered the light sensorwindow. Change the direction orposition of the remote flash unitand reshoot.