Canon Speedlite 580EX II Flash for Canon

FE Lock - Flash exposure lock

FP Mode, or high-speed sync, allows the camera to sync with flash at higher shutter speeds

Second-curtain sync fires the flash at the end of the exposure, allowing streak of light to flow naturally behind the movement of the subject

Wireless TTL flash when triggered by other on-camera 580EX; or when combined with ST-E2 Transmitter & multiple 580 or 550 EX's

Stroboscopic mode shows several minute flashes continuously to easily view flash effect

14 Custom Functions that provide maximum control over various flash functions