Zigview S2 Digital Viewfinder. This neat remote viewer combo attaches to the back of your digital SLR camera and lets you trigger the shutter from a remote location (based on the length of the cable you buy). It also has a very cool motion sensing feature which will automatically grab shots when something enters the scene, which makes for great shy animal shots. Comes with a range of camera mounts for all the major brands. Priced at £229.95.
Motion sensor. Fires the shutter when movement is detected based on brightness levels in 9 areas of the viewfinder. Each of these areas is adjustable, and because it is all based on the viewfinder image, the Zigview S2 works equally well whether the lens is a wide angle or extreme telephoto. Motion detection interval can be adjusted to suit slow or fast subjects; delay time, exposures per motion detection, and many other aspects of operation, including waking up a camera which has gone into sleep mode, are all fully adjustable.