sony hvl-f42am high power digital flash for sony alpha dslr cameras
powerful flash for more creative freedom . the hvl-f42am flash unit gives sony system photographers more illumination power for every shooting opportunity with effective range greater than 30 feet 10.5 m versatile bounce angles 90 up 90 left 180 right and high-speed sync to catch fast action . it also provides intelligent features like auto zoom optimized for image sensor size auto wb with color temperature signal to camera and accurate adi metering capability -- plus wide zoom angle 16mm with retractable wide panel simple controls flash test button and fast recharging time to help you shoot more quickly guide number 42 .