Promaster Optical Slave Flash Trigger - for Standard Hot Shoe - EXCEPT Canon, Sony & Maxxum

This optical slave sensor is used to remote trigger a flash unit that does not have a slave sensor. It can also be used as PC connector to hot shoe adapter. Works with most flash guns in auto mode or manual mode (TTL mode is not supported).

Compatible with most electronic flash units EXCEPT Canon, Sony & Maxxum cameras.