For reliable flash triggering with full Canon E-TTL / E-TTL II support, this Vello FreeWave Captain Wireless TTL Triggering System Kit from B&H comes with a transmitter and two receivers, as well as flash cables and a shutter release cable, to greatly expand your off camera lighting capabilities with multiple speedlites. The system utilizes a 2.4 GHz frequency for reduced interference and provides a working range of up to 300'. Also, it has 4 channels and can sync at shutter speeds up to 1/8000 second (in TTL mode).
And the benefits aren't limited to flash photography either. You can also use the receiver with the included camera cord and handhold the transmitter to wirelessly trigger your camera in single shot, continuous shot, bulb, and timer modes. This is of paramount importance in situations where a subject, such as wildlife, may be difficult to approach. Additionally, the wireless function of the device reduces the potential of camera shake when doing macro, close-up, and long exposure photography. The Captain system can also be combined with the non-TTL FreeWave Fusion Basic system, and additional FreeWave Fusion Basic receivers can be integrated into the Captain system.
The Vello FreeWave Wireless TTL Captain's High Speed Sync and Second Curtain Sync functions create easy to control lighting effects and other creative options such as stop-action shooting and a wide degree of background or ambient light control.
Canon EOS: Digital Rebel (300D), XT (350D), XTi (400D), XSi (450D), T1i (500D), T2i (550D), T3 (1100D), T3i (600D), T4i (650D), T5 (1200D), T5i (700D), T6i (750D), T6s (760D), SL1 (100D) and XS (1000D), 60D, 70D & 80D
10D, 20D, 30D, 40D, 50D, 5D, 5D Mark II, 5D Mark III, 6D, 7D, 7D Mark II, 1D, 1D Mark II, 1D Mark II N, 1D Mark III, 1D Mark IV, 1Ds, 1Ds Mark II, 1Ds Mark III, 1D X and 1D C
PowerShot: G10, G11, G12, G15, G16, G1 X & G1 X Mark II, SX50 HS