The Cactus V5 Shutter Cable for Canon, Pentax and Samsung will transform your Cactus V5 Wireless Flash Transceiver into a wireless shutter release device. A shutter release cable is an ideal device to prevent camera shake when you press the shutter release button. It is a must for night photography or taking photos in B-mode.Simply connect the coiled shutter cable from your camera's remote control terminal to the V5 transceiver x-Sync Port and you can wirelessly control the shutter of your camera. This operation will not interfere with your wireless flash setup using another set of V5 transceivers set on different channels. So you may run both shutter release and wireless flash systems in parallel.