Is a camera with a 360-degree field of view in the horizontal plane, or with a visual field that covers (approximately) the entire sphere. 360 cameras are important in areas where large visual field coverage is needed. A camera normally has a field of view that ranges from a few degrees to, at most, 180°. This means that it captures, at most, light falling onto the camera focal point through a semi-sphere. In contrast, an ideal 360 camera captures light from all directions falling onto the focal point, covering a full sphere. In practice, however, most 360 cameras cover only almost the full sphere and many cameras which are referred to as 360 cover only approximately a semi-sphere, or the full 360° along the equator of the sphere but excluding the top and bottom of the sphere. In the case that they cover the full sphere, the captured light rays do not intersect exactly in a single focal point.