PHOTTIX Wired Remote Switch N8/1m - 10420
"The Phottix Wired Remote is a compact remote switch with all the functions of the camera's shutter release button. This remote makes it convenient and easy to take long exposure photos or work in situations where limiting camera shake is important.
A half press on the shutter button will cause the camera to focus, and a full press will trigger the shutter and cause the camera to take a photo. The remote shutter button can be locked in position for long exposure photography. Compact, the remote it is made of high quality components to make it both lightweight and durable for years of use. "