This Canon 600EX-RT Flash with Mini LiteTrek (LT) Battery 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.
Whether it's fashion, wedding or portrait photography, the best way to achieve professional-looking results in the field is by adding flash to the ambient light. The Impact Mini LiteTrek (LT) Battery Pack provides DC juice to your Impact LiteTrek 4.0 portable flash or select Nikon and Canon flashes with optional power cords as well as Quantum flashes without adaptation.
Simply plug the DC cord which comes with the LiteTrek 4.0 into Outlet A on the Mini LT's top panel (Outlet B is for other brands). The panel features a "fuel gauge" indicator to display available power. The LiteTrek 4.0 will give you an impressive 650 full power flashes or 3,500 1/64th power flashes on a single 4 hour charge. Recycling times are from 1.0 - 3.5 seconds. Unlike other battery systems, the Mini LT's battery separates from the power module with a simple "push and slide" action which is reminiscent of a camera quick release. You can pack additional batteries alone without the extra weight of a second or third full battery system. Besides reducing the weight this also reduces the cost; the battery alone is less than ½ the price of the complete system. 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.