Answer: 4º
Explanation: A 600mm lens will have a field of view of approximately 4°. The field of view of a lens is determined by the focal length of the lens and the size of the film or image sensor. A longer focal length lens will have a narrower field of view, while a shorter focal length lens will have a wider field of view. 600mm is a very long focal length, so the field of view will be correspondingly narrow.