JJC Pk1 Camera Remote Switch is designed for Pentax, KP. This remote switch is a great way to prevent camera shake, it is a perfect choice for long exposure photos. It is a two phases, half press to focus, fully press to trigger the shutter and take a photo. For long exposures, press the shutter release fully and slide it in the locked position. The lid stay open as long as the shutter release button is unlocked. In order to trigger, just slide the button back to its original position.