camera shake
noun1
Arts, Hobbies, Lifestyle, Photography The involuntary movement of a camera at the time of exposure (when the shutter is activated), leading to blurring of the picture.
- The camera must be held quite still when the exposure is being made; by far the most common reason for unsatisfactory results is camera-shake at the moment of exposure.1950 December, Canon Eric Treacy, “Railway Photography”, in Railway Magazine, page 796: