This adapter allows you to add a PC connection to any camera or flash that does not come with a built-in PC sync connection, while still retaining the existing hot shoe functionality. This adapter fits into any standard hot shoe and adds a PC sync connection port and a 3.5mm mini phone port to your camera, allowing you to connect to a studio flash using the PC connection port or the 3.5mm mini phone socket. In addition, the adapter also features a hot shoe on top (non-TTL), which allows you to keep a flash mounted on the camera (or any other shoe accessory) while simultaneously connecting the camera to a studio light via a sync cable (Not included in the package). Or, use it to provide a PC connection to a flash that doesn't have a built-in one, when positioned off-camera. It is compatible with cameras with standard hot shoe.