Optical Triggering: FJ400 SEUpdated 21 days ago

The FJ400 SE features an optical sensor that allows it to be triggered remotely by another flash or strobe unit fired nearby. 
This sensor is located near the mini plug and at the bottom of the unit.
It’s important to know the location of the optical sensors as they need a line of sight of the triggering flash. 

Enabling Optical Triggering with the FJ400

1. Understand Optical Trigger Disables Connectivity with Wireless Hosts: When enabling Optical Triggering, the strobe will fire only when it sees another flash fire.
2. Enable Optical Sensor: Press and hold the bottom button on the right side of the LCD screen. It will have icons of a speaker and an eye. Note: group and channel will no longer be displayed on the screen and an "eye" will be displayed at the bottom right of the screen.

With the optical sensor activated, units will fire simultaneously with an initial flash from any make or model, provided the flash output is sufficient and the sensor detects the signal.