Camera shake refers to the unintended movement of a camera during the capture of an image or video, resulting in a blurry or unstable visual. This can occur due to various factors, such as hand movement, vibrations, or poor stabilization techniques. It is particularly noticeable in low-light conditions or when using slow shutter speeds. To minimize camera shake, photographers often use tripods or stabilizers, which provide a steady base for the camera. Additionally, techniques like increasing shutter speed or using image stabilization features can help reduce the effects of shake, leading to clearer and more professional-looking images.