Its hard to realize just how much power is packed into this compact flash—the newest member of the Metz 54 series. The Metz 54AF-1M Digital represents the current state-of-the-art in flash technology. New internal precision metering methods ensure perfect flash exposures with Konica/Minolta’ s ADI system for its Dimage series cameras. The 54AF-1M Digital is simple to operate and enhances the fun of flash. It also stands for more sophisticated use of flash with shorter recycling times, modeling light, three partial light output levels, and second curtain synchronization - indispensable for controlling light effects on moving objects. TTL: film & digital; auto shut-off; AA battery size; battery type: Alkaline. NiCad. NIMH; coverage: 0.94 in.; depth: 4.25 in.; included diffuser; LCD display; exposure OK indicator; extended zoom; guide number @50mm (ISO 100): 40 guide number (meters); height: 4.92 in.; integrated AF measuring system; max guide number (ISO 100): 54 guide number (meters); max recycle time: 7 s.; number of batteries: 4; 3 power levels; +90° head tilt; weight w/o batteries: 11.62 oz.; width: 2.95 in.