Canon's new Speedlite 600EX-RT is built to produce a replacement level of performance and responsibility for skilled flash photography with today's most advanced DSLRs. With wireless two-way radio communication, the Speedlite 600 EX-RT permits photographers to expand their creative thinking victimization wireless speedlites with the responsibility of radio triggering. The Speedlite 600EX-RT offers associate swollen zoom vary and the next guide range, and variety of enhancements over its forerunner in each operation and feel. It options a replacement dot-matrix show|LCD|digital display|alphanumeric display} panel for display of all pertinent shooting info, backlit controls and an enclosed sound generator. responsibility is ensured with improved hot shoe contacts, improved flash head sturdiness and also the most comprehensive dirt and water protection system ever on a Canon Speedlite flash. a replacement color filter holder helps maintain correct colour a spread of close lightweight conditions.