Sony HVL-F42AM External Electronic Flash for Sony Alpha DSLR Digital Camera

The Sony HVL-F42AM Flash unit gives a (alpha) DSLR photographers powerful illumination, adjustable bounce angles, wireless remote capability and intelligent features like ADI metering, auto White balance, auto Zoom and high-speed sync?perfect for formal portraits, weddings and special events, still-life photography, hobby shots and more. Freedom of Accessory Flash can improve formal portraits, brighten low-light scenes, bounce lighting to soften shadows and illuminate the entire frame, provide fill-in flash for Backlit shots and expand your creative freedom with complex lighting effects to give shots greater depth, erase or define shadows and bring hidden details into view High illumination Output in a small lightweight body, with effective range greater than 30 feet (10.5m) and guide number 42. (Guide number measures the illumination capability of the flash; the higher the number, the more light the unit can provide. Tested at ISO100, 105mm.) Flexible adjustment angles of 90-degrees up, 90-degrees left and 180-degrees right give you greater flexibility for bouncing light from ceiling, walls or bounce cards Intelligent features of the HVL-F42AM include the power to adjust white balance automatically Auto Zoom Control Wide-Angle Coverage - Automatically adjusts flash for focal-length settings from 24mm to 105mm Wireless Operation - Sony alpha DSLR cameras feature an operating mode that sends wireless signals to one or more HVL-F42AM Flash Units, allowing you to operate and adjust off-camera flash lighting setups with greater ease. Conventional flash only works well at shutter speeds from 1/125 to 1/250 of a second. The Sony HVL-F42AM Flash Unit provides High-Speed Synchronization mode that enables flash sync with shutter speeds from 1/5