A versatile flash, aimed at professional photographers.
Canon's new Speedlite 600EX-RT is engineered to provide a new level of performance and reliability for professional flash photography with today's most advanced DSLRs. With wireless two-way radio communication, the Speedlite 600 EX-RT allows photographers to expand their creativity using wireless speedlites with the reliability of radio triggering. The Speedlite 600EX-RT offers an expanded zoom range and a higher guide number, plus a number of improvements over its predecessor in both operation and feel. It features a new dot-matrix LCD panel for display of all pertinent shooting information, backlit controls plus an internal sound generator. Reliability is ensured with improved hot shoe contacts, improved flash head durability and the most comprehensive dust and water sealing system ever on a Canon Speedlite flash. A new color filter holder helps maintain accurate color in a variety of ambient light conditions.

Fast, powerful operation
With a guide number of 196.9 ft./60m at ISO 100, the Speedlite 600EX is powerful enough to light up large areas, even when light is bounced off walls and ceilings. Four AA/LR6 batteries provide silent recycling in as little as 0.1 sec.

Bounce, swivel and zoom functions
Direct the Speedlite 600EXs flash head upwards or sideways to bounce flash off ceilings or walls, for a softer approach to portrait lighting. A zoom head allows the angle of coverage to match the lens in use, maximizing flash efficiency

Multi-flash lighting
Use a large number of Speedlite 600EX units together for dramatic multi-flash photography " perfect when shooting large objects, interiors or portraits. Flashguns may be placed in one of three groups, which can be controlled individually or all together.

E-TTL II metering
Whether you use the Speedlite 600EX on camera or remotely, Canons E-TTL II flash metering will ensure accurate exposures every time.

Creative flash modes
High-speed flash sync enables the Speedlite 600EX to operate at any shutter speed " perfect for fill-in flash on sunny days. Or why not try second-curtain or stroboscopic flash for special lighting effects?

Professional features; intuitive design
The Speedlite 600EX enjoys the same degree of weatherproof sealing as Canons EOS-1D X professional DSLR, and a large illuminated dot matrix LCD display that provides quick and easy operation.