Trigger sync prism Sea&Sea (YS-D3 Duo YS-D3 MKII)

Optical fire device to trigger the strobe when a fiber-optic cable is not connected to any YS-D3 strobes.

The device is effective if multiple strobes are used in a fixed position. However, the flash may not fire depending on the position of where multiple flashes are occurring in relation to that of the master flash.

This device is for manual use only.