Ideal to integrate your external camera flash unit in your flash set. The flash unit can simply be slid in the hotshoe. The sensor at the front of the PSL-15 measures the light of your flash units and triggers the flash units. The slave sensor PSL-15 can be mounted on a standard stand with 1/4 thread and it also has an X contact. If you choose for the combination with the 4M4F-UR (296937) you can screw the slave sensor on it and put an umbrella in the 4M4F-UR. This 4M4F-UR can be mounted on a stand so you can create a separate flash head in combination with your external flash unit. To create more flexibility with the PSL-15 you can use the Tilting bracket CLD-15 (296920). This can be bent and positioned in almost any direction. (see picture 3)
Also reacts to the Falcon Eyes TR-I infrared transmitter for triggering your external flash unit.