The PowerST4 Receiver enables remote power control of Elinchrom RX flashes using PocketWizard ControlTL technology. With a MiniTT1 Transmitter or FlexTT5 Transceiver on your camera and a PowerST4 plugged into your Elinchrom RX flash, you can now adjust the flash power settings directly from the camera position. Add the AC3 ZoneController and you can control three different zones of lights in 1/3-stop increments with up to a six-stop range. Utilize PocketWizard’s unique features such as HyperSync and Optimized Rear Curtain Sync for maximum control of your lighting.
Key Benefits:
• Use PowerTracking and when you change ISO or aperture, the lights automatically adjust their power setting.
• Add the AC3 ZoneController to control up to three zones of light independently.
- Use the AC3’s Manual Mode and adjust the
output of your Elinchrom RX flashes from
the camera position in 1/3rd stop
increments.
- Combine manual and auto modes or toggle
zones on and off and unleash your
creativity.
• Use HyperSync to increase your maximum x-sync speed and Optimized Rear Curtain Sync to create natural looking movement in your images.

PocketWizard is the brand name for a line of photography accessories which allows photographers to be more creative. PocketWizard radios are the industry leaders in wireless control and synchronization of cameras, flash lighting and light meters. The world headquarters are based out of Shelburne, VT USA where a small group of dedicated employees continue to build the PocketWizard brand as the “must have” photography accessory.