Adorama Hot Shoe to PC Adapter, Single Outlet without Connecting Cord.

This is so necessary for today's electronic cameras. Why take the chance of burning your electronic circuits with the off camera flashes. Slave flash is unreliable. Hard wire your camera but don't use the PC connector as some monoflashes suck more that 5-12 volts and this can ruin the electronics of the most robust camera.

Mount this on the flash shoe and there will be no chance that the flash will cause damage to your camera.

Cheap Looking but it works, I however upgraded to the Wein SSHSHS Safe-Sync Hot Shoe to Hot Shoe #W990560 becasue it protects the camera body from higher flash trigger voltage of older strobes