When you add the Pocket Wizard AC3 ZoneController for Canon to your on-camera MiniTT1 Transmitter or FlexTT5 Transceiver, you instantly have three zones of flash control. Whether in E-TTL II or Manual mode, you have control over all your flashes from your camera position. Put your flashes wherever you want, without worrying about having to access them during a shoot. Three clearly labeled dials let you increase or decrease power to three zones of flash in 1/3-stop increments--with a range of up to six stops.

See recent price change history for the PocketWizard AC3 ZoneController for Canon.