CAM Engineering Reporter Flash Bracket , Large 4.6" ID Rotating Flash Mount for SLR Cameras with a Vertical Grip

Fits any SLR photo camera with the tripod mounting hole centered to the lens. (Cameras without a vertical grip will require the RFR105 Universal Mounting Adapter)Designed to accept any common off-camera TTL cord adapterThe ring's diameter is big enough to provide room for the largest lenses usedby event photographers and small enough not to restrict any camera operationsUnique slider mechanism provides two self-locking flash positions 90° apartPrecision machined, rigid, all aluminum

Source: Digital Camera and Video Store...