Patent ID: 6348948
Filing Date: 2002-02-19
Classification: H04N

Abstract:
An interchangeable lens type camera system comprising:a) a camera body; b) a lens unit detachably mounted on said camera body; c) optical magnification varying means disposed within said lens unit; d) electronic magnification varying means disposed within said camera body and arranged to electronically magnify an image; e) communication means for communicating control information between said camera body and said lens unit; f) lens-side control means disposed in said lens unit and transmitting to said camera body the control information including a status information of said optical magnification varying means through said communication means, the control information used for controlling an operation of said electronic magnification varying means on the basis of an operating state of said optical magnification varying means; and g) camera-side control means disposed in said camera body and arranged to enable said electronic magnification varying means on the basis of said control information received from said lens-side control means through said communication means and to transmit control information to said lens side control means so as to disable said optical magnification varying means during enablement of said electronic magnification varying means.