Compatible camera models: Olympus: E1, E3, E5, E10, E20 how to use: 1. Half-press shutter release button, Start the auto zoom/ metering system of the camera, so the photographed object was focused. Then, press the shutter release button to release the shutter of the camera to shoot. 2. Lock the shutter(camera set to continuous shooting or bulb). press the shutter release button and move forward and lock the camera to carry out continuous shooting or long exposure. 3. To unlock, press the shutter release button and push back, release the shutter button to return to the original position. Hot to install: 1. To prevent unexpected accidents, please turn off the camera. 2. Open the jack over of the camera, align the plug jack with the camera. Insert it Safety to ensure good contact. 3. Then, you can turn on your camera and start your wonderful shot.