This Canon 580EXII Flash w/ Bolt Power Pack & Cable Kit from B&H Photo delivers a complete top quality camera flash outfit for your Canon camera. Canon's flagship shoe-mount flash, the 580EXII has been redesigned to match with the EOS-1D Mark III in terms of improved dust- and water-resistance, body strength, and the ability to control flash functions and settings from the camera menu (EOS-1D Mark III only). Other features include improved communication reliability through its direct contacts, a metal hot shoe, and recycling time is both 20% shorter than the 580EX and is completely inaudible.
The Bolt Cyclone power pack can give you up to 400 full-power flashes, with a lightning quick recycle time of 1 second. The included charger will completely charge the pack in 2 hours on 100-240VAC. The CZ cable that's included in this kit is a dedicated cable for the 580EXII flash, so you're immediately ready to start shooting.