Sensor cleaning refers to the process of removing dust, dirt, or smudges from the image sensor of a digital camera. A clean sensor is crucial for capturing clear and high-quality images, as any debris can lead to unwanted spots or blemishes in photographs. This cleaning can be done using specialized tools or by professional services. There are two main methods for sensor cleaning: manual cleaning and automatic cleaning. Manual cleaning involves physically wiping the sensor with a soft brush or cloth, while automatic cleaning uses built-in mechanisms in some cameras to shake off dust. Regular maintenance helps ensure optimal camera performance.