The HVL-F56M provides remarkable flash output with the maximum guide number of 56m (184 feet) at ISO100 in a compact body. Flash coverage is available from 24mm to 85mm focal lengths, and further extends to the 17mm focal length with a built-in wide-angle adapter. It assures highly reliable metering accuracy with ADI (Advanced Distance Integration) flash metering in combination with Sony s lenses with distance encoder and the Sony Alpha 100 DSLR (or the older Minolta Dynax 7D or 5D cameras). It also supports versatile remote flash photography with Wireless/Remote High-speed Sync when used as an off-camera flash. The AF illuminator covers the Alpha100 s 9-point sensors in the wide focus area. Furthermore, the flash head tilts 10deg. downward for close-up photography. Also compatible with the Konica Minolta Dynax 7D, 5D, Dimage 7 and the Dimage 5.