Delayed action refers to a camera function where the shutter is triggered a short time after the shutter release is pressed. This feature, often called a self-timer, is built into most cameras and allows a delay of several seconds before the exposure is made. Delayed action is commonly used for self-portraits, group photos, or to reduce camera shake by avoiding direct contact with the camera during exposure. It is a simple but effective tool for achieving sharper images and better composition without needing additional accessories.