PocketWizard is developing the ZoneController to make multiple light set-ups easy to adjust when using their ControlTL system.
The ZoneController allows the photographer control over three independent zones of light whether working in E-TTL or manual mode. The PocketWizard ZoneController will be available late summer.
The ZoneController slides into the upper hot-shoe of an on-camera MiniTT1 or FlexTT5 radio and communicates with a FlexTT5 at the flash that has been set for either zone (or group) A, B or C. The three dials on the ZoneController independently adjust the A-B-C zones and allow for 1/3 f-stop increments of power control with a +/- three f-stop range (six stops total) when used in manual control. When used for TTL auto flash, the ZoneController adjusts the relative light level of each zone independently.