The new sekonic rt 32ctl transmitter module provides compatibility with the pocketwizard controltl channels in addition to the original standard channels the rt 32ctl is offered as an optional plug in accessory for the sekonic l 358 flashmaster l 758d and l 758cine and built in to the l 758dr digitalmaster light meter the rt 32ctl radio transmitter enables photographers for the first time to trigger and measure flash output with the pocketwizard flextt5 canon or nikon controltl system in