Canon ST-E3-RT Flash Radio Transmitter – V2

Updates include Wireless Rear Curtain Synchronization for the look of motion in your subjects and a remarkable minimum power range of 1/81922 for very low-light shooting. Another outstanding feature is FE Memory which allows you to lock in an E-TTL flash exposure level, even in complex multi-flash setups, and subsequently continue to use it for the same scene or subject. Yet another upgrade is eight types of custom functions and three types of personal functions. Compact design with highly reliable construction combined with a clearly laid-out information panel and buttons with back lighting make this an indispensable tool for advanced professional flash photography.