The Captur is a dual-purpose wireless remote shutter release for Sony DSLR cameras, and a wireless trigger for a Sony compatible flashgun. Camera autofocus is pre-activated before shutter release, and as well as instant release, continuous and Bulb modes are available. Functionality can be extended to include time-lapse, interval and delay with the optional Timer Module. All of that and a host of extra triggering features via sound, light and laser can be found in the Pro Module. The Captur system enables you to expand camera control as your needs dictate without making anything redundant.