- ControlTL
- E-TTL II and CLS/i-TTL compatibility
- Manual power control
- ZoneControl
- SpeedCycler with an AC3 ZoneController
- Flash power control without a camera
- PowerTracking
- Studio flash compatibility
- Simple design
- Auto-manual switch
- Easy to read dials
The AC3 ZoneController for Canon and Nikon is the gem of the ControlTL product line. Add it to your on-camera MiniTT1 Transmitter or FlexTT5 Transceiver and you instantly have three zones of flash control. Whether working in E-TTL II, CLS/i-TTL or manual mode, you now have control over all your flashes directly from the camera's position. Put your flashes wherever you want, without worrying about having to access them during a shoot. With the AC3 ZoneController, you are in total control of your flash.