With a single shutterpress, the camera takes two shots consecutively, using the first image to estimate depth information to create a dramatic three-dimensional still image.
There's a growing choice of 3D-capable digital cameras from Sony. 3D Sweep Panorama captures extra-wide 3D scenes: just press the shutter button and sweep the camera from side to side.
The remotes also enable the bulb function for long shutter applications, as well as functions of the camera that are affected by a half-press of the shutter, including the engagement of the AF system or starting and stopping video capture.