A powerful flash gun for use both on and off the camera. Built-in radio triggering offers remote lighting control over distances up to 30m. The Canon Speedlite 600EX-RT Flashgun features an AF assist beam to help focus in the dark and a guide no of 60m (ISO 100, at 200mm setting) to ensure long-range flash and wide-area coverage. The 600EX Flashgun takes four AA batteries

• High-performance TTL flash photography, both on- and off-camera.
• Explore new off-camera flash techniques, with radio-frequency triggering over 30m.
• Create intricate lighting set-ups, using up to 15 600EX-RT units together.
• Explore new and unusual shooting angles through remote camera triggering.
• Create shadowless lighting with a bounce-and-swivel flash head.
• Guide number 60m (ISO 100, at 200mm setting) for long-range flash and wide-area coverage.
• 20-200mm zoom head maximises efficiency.
• White balance is communicated to camera; colour correction filters also included.
• Focus in the dark using the built-in AF assist beam.
• Radio triggering with 30m range
• Use up to 15 units together
• Integrated optical slave
• Remote camera triggering
• Bounce-and-swivel head with zoom control