Versatile external flash with Quick Shift Bounce and wireless supportIdeal for everyday shooting and studio useQuick Shift Bounce system for consistent lightingAdvanced features optimised for α camerasDesigned for the real worldControls and joints are sealed against dust and moisture for surer shooting in tough environments. A perfect partner for all α DSLR/SLT cameras by Sony it's tailor-made to match the ruggedised seals of the α77 camera and VG-C77AM vertical grip.Powerful flash outputFeel the power with higher output levels to light up subjects far from the camera. Broaden your creative options with the powerful GN43 rating that throws more light on portrait sitters interiors and studio compositions.Great results in any positionKeep shadow positions consistent whether you're shooting in landscape or portrait positions. Unique to Sony the Quick Shift Bounce system lets you switch between different camera orientations in one seamless movement.Wireless flash controlAdding extra light sources lets you create professional-looking pictures without harsh shadows. Trigger additional off-camera flash units with no need for wires or tricky calculations.Intelligence built inThis advanced flash makes a perfect partner for your α DSLR/SLT camera. Illumination angle is automatically matched to the camera's image sensor size. Information from the flash automatically adjusts camera's White Balance settings for natural results.External flash unit with GN43 (105mm lens ISO 100)Quick Shift Bounce system maintains consistent shadows with camera in horizontal or vertical orientationHigh accuracy ADI flash metering combines TTL metering and guide number controlIntelligent WB adjustment with colour temperature informationFlash head position click-adjustable up to 90Ëš left/right rotation; up to 150Ëš up; 8Ëš downHigh-speed sync available at all shutter speeds22-step manual power level settings (1/1-1/128)Auto and manual zoom controlWireless flash bounce flash modelling flash and multi-burst functionsWireless lighting ratio control for smooth professional effects with up to three flash groups (with DSLR-A900/850/700)