Speedlite Transmitter ST-E2
With the Speedlite 550EX and the Speedlite Transmitter ST-E2, it is now possible to use multiple Speedlites under full E-TTL control and without the need for any interconnecting wires. Developed in conjunction with the Speedlite 550EX and the EOS-3 camera, this master control device for a wireless Speedlite flash system meets professional and advanced amateur standards. Its dedicated transmitter controls up to 3 Canon 550EX Speedlites as slave units 33 feet away outdoors and 49.5 feet away indoors. It is mounted as a clip-on with a shoe lock lever and locking pin.
Offer valid February 5, 2017 12:00 a.m. through March 4, 2017 11:59 p.m. ET. Offer valid in U.S.A. only, and void where prohibited, taxed or restricted. Offer excludes: Power Zoom Adapter PZ-E1, Directional Microphone DM-E1, Wireless File Transmitter WFT-E8A, Wireless File Transmitter WFT-E6A, and Waterproof Case WP-DC55, Electronic Viewfinder EVF-DC2 Black and Silver, Wireless Remote Control BR-E1. Availability of certain items may be limited. Limit of ten of any one item per order, subject to availability. Order will be shipped to a street address in the 50 United States or the District of Columbia only. Dealers, distributors and other resellers are not eligible for this offer. Offer subject to Terms of Sale.