New Advanced Professional TTL, Multi and Manual Speedlight, High Speed Sync 1/8000S, Wireless Master and Wireless Slave Function up to 30 Flashes, LED Fill Function. DFL500T Multi mode, Produce stroboscopic effect of multiple exposures. When the body of the fast moving, this feature is very useful. Support high-speed synchronous flash Flock /FELLock, second-curtain sync, FEB, Red-eye reduction flash mode. Wireless flash system In this mode, the remote control the flash can be divided into three groups, separately set up in each group and the main. Auto focus assist illuminator If there is no enough light, this feature helps you to auto focus flash photography. TTL Flash mode: When the DFT500T flash a series of supervisory fire, camera by detecting the subject reflected light, control of DFT-500T flash output, DFL-500T flash of light will be to correct exposure of the body, and less affected by ambient light exposure.