AC3 ZoneController

The AC3 ZoneController for Canon or Nikon is the gem of ControlTL product line and allows you to be in total control of your flash.

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 ll, 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. 
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Canon E-TTL II, Nikon CLS/i-TTL, Elinchrom RX, AlienBees, White Lightning, Einstein™ E640 Flash


Hot shoe

Selector Switch:

Off, Manual, Auto (PowerTracking, E-TTL II, CLS/i-TTL)

Adjustment Range:

Auto = +/- 3 stops, 1/3 stop increments

Status indicator:

LED: Green status indicator

Operating temperature:

Above -15° C (5° F) and below 50° C (120° F)


(without battery)

Above -30° C (22° F) and below 85° C (185° F)


high impact plastic


No battery required.  Minimal power requirements received from the MiniTT1 or FlexTT5.


2" (5cm) wide x 1.7" (4.2 cm) long x .9" (2.1cm) tall


.82 ounces (23.25 grams)

Included in the box:

AC3 ZoneController, Quick Guide

RoHS Compliant



MiniTT1 Transmitter or FlexTT5 Transceiver with firmware version 5.150 (or later) needed as a host.