The circular flash head is designed for the Canon E-TTL II autoflash，it outputs even light for flash photography. The modeling lamp lets you clearly view the lighting effect under the current setup. If you use it off-camera, you’ll need a wireless Q-C/QPro-C TTL transmitter (sold separately). The zoom range is 28 to 105mm and the recycling time is 1.5s and 480 flashes at full power. Use the high-speed sync (up to 1/8000s) to freeze motion.
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