Patent ID: 7756405

Claim:
A camera system comprising: an interchangeable lens including a lens-side mount ring and an annular packing made of a resilient material; a first-type camera body including a first mount ring to which said lens-side mount ring is mountable, an outer diameter of a front end of said first mount ring being greater than an inner diameter of a rear end of said annular packing in a free state; and a second-type camera body including a second mount ring to which said lens-side mount ring is mountable, an outer diameter of a front end of said second mount ring being smaller than said inner diameter of said rear end of said annular packing in said free state, and an inner diameter of said second mount ring being equal to an inner diameter of said first mount ring, wherein an inner peripheral surface of said rear end of said annular packing is positioned radially outside said second mount ring in a state where said lens-side mount ring is coupled to said second mount ring, and wherein said annular packing does not contact said second mount ring when said lens-side mount ring is mounted on said second-type camera body.