| 摘要 |
To provide a lens system which is to be used with a virtual system and which can curtail time and labor required by settings of the virtual system by outputting data pertaining to an angle of view, an object distance, and a principal point position, all being required by the virtual system, the lens device of an actual camera used for photographing an actual video to be used by the virtual system includes a CPU determining information about the angle of view, the object distance, and the principal point position, all being required to set a virtual camera in the virtual system, on the basis of a zoom position and a focus position detected by encoders, and transmits the information to the virtual system.
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