The second iteration of the Canon Speedlite Transmitter ST-E3-RT builds upon the successful design and acclaim of its predecessor, enabling users to fully leverage the capabilities of flashes such as the Speedlite EL-1, 600EX-RT, and 430EX III-RT. This updated version simplifies intricate lighting arrangements by providing radio-controlled, two-way wireless communication over distances of up to 98.4 feet, accommodating up to five groups or 15 individual Speedlites. Notable enhancements include Wireless Rear Curtain Synchronization, which imparts a sense of motion to your subjects, and an impressive minimum power range of 1/81922, ideal for shooting in low-light conditions. Additionally, the FE Memory feature allows users to lock in an E-TTL flash exposure level, facilitating consistent results across complex multi-flash scenarios. Furthermore, it offers eight types of custom functions and three types of personal functions. Its compact design, robust construction, and user-friendly information panel with backlit buttons render this device an essential asset for professional photographers engaged in advanced flash photography. Features Updated to include Wireless Rear Curtain Synchronization, a minimum output range of 1/8192, and FE Memory Up to five groups or 15 individual flashes can be controlled via one transmitter Supports E-TTL II Flash, Manual Flash, Stroboscopic and Auto External Flash Metering Dot Matrix LCD Panel displays all pertinent information simultaneously and backlit control panel means easy operation Eight types of custom functions, three types of personal functions High-performance hot shoe contacts for reliable information transmission and operation
