Canon 600EX-RT Speedlite Flash

Wireless multiple flash system uses radio wave communication for enhanced control of up to 5 groups of flashes
Dot matrix LCD panel and backlit button provide easy visibility
Color filter holder for attaching third-party color gelatin filters
18 Custom Functions and 7 Personal Functions for creative flexibility
Full swivel, 180-Degree in either direction
New wireless multiple flash system using radio wave communication for enhanced control of up to five groups of flashes
Zoom flash head covers wide range of 20-200mm; maximum Guide Number (197 ft/60m at ISO 100)
Redesigned contact construction, improved flash head durability, and exceptional dust and weather resistance for reliable operation
AF Assist Beam compatible with Canon’s new 61-Point High Density Reticular AF, dot matrix LCD panel and backlit button provide easy visibility
18 Custom Functions for creative flexibility, full swivel, 180 degrees in either direction, color filter holder for attaching Canon and third-party color gelatin filters