The Fujifilm X-10 Ergonomic Extension Kit contains a thumb grip and a soft-touch shutter release. These two little items will make a world of difference when it comes to handling your Fuji X10. The thumb grip slides into the camera's hot shoe and extends behind the camera to offer a comfortable curve in which to place your thumb. That curve will give you more comfort, control and stability when shooting the X10.
In addition, a soft-touch shutter release button raises the height of the shutter button and, in combination with the thumb grip, puts your trigger finger at the perfect spot for a light touch on the shutter to fire your camera. The soft-touch shutter release screws into the camera's shutter button and makes it easier for your finger to depress the shutter.