This Canon 600EX-RT Flash with Bolt Power Pack & CZ Cable Kit
from B&H Photo
delivers a complete top quality camera flash outfit for your Canon camera. As a Canon top-of-the-line flash, the Speedlite 600EX-RT takes the best features from existing models and adds functionality for enhanced digital photography. The 600EX features a new wireless multiple flash system using radio wave communication that provides more precise control over as many as five groups of flashes. There's also more power, with a guide number of 197' (60 m) at ISO 100, a zoom flash head that covers a 20-200mm range, and updated AF assist beam that's compatible with Canon's 61-point High density Reticular AF.
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 600EX-RT flash, so you're immediately ready to start shooting.