What does 'shutter lag' refer to in digital photography?

Shutter lag refers to the delay that occurs between the moment the photographer presses the shutter button and the moment the camera actually captures the image. This phenomenon can be particularly noticeable in situations where quick reaction times are essential, such as capturing fast-moving subjects or spontaneous moments. Various factors contribute to shutter lag, including the camera's processing speed, autofocus system, and overall responsiveness.

Understanding shutter lag is crucial for photographers, especially when aiming to capture fleeting moments, as it influences their ability to time their shots accurately. Reducing this lag can enhance the overall shooting experience and help in achieving better results in dynamic situations. The other concepts outlined in the other choices correlate to different aspects of camera operation, but they do not define shutter lag as clearly as this definition does.