One example zoom lens group is disposed on an object side of an imaging lens group along a direction of an optical axis. The example zoom lens group includes an optical element and a drive element, and the drive element drives the optical element to move along a first direction, causing the optical element to cut into or move out of an optical path to implement zoom. The first direction is set at an included angle with the optical axis, and when the optical element cuts into the optical path, the optical element enlarges a field of view.