Paul C. Buff, Inc. Technical Forum

Any reason why its not seeing. Only a few feet away from another PCB light. Not hidden as I can see flash right behind it.

Do you have anything plugged into the sync jack? If so, this will lock out the slave eye.

Does it see if a flash is fired directly into the back panel?

How much ambient light is present, and does the response improve if the ambient light is lowered?

Oops, doubled checked sync cable. Thought I had taken it out. It sees, how wonderful!