Patent ID: 6089761
Filing Date: 2000-07-18
Classification: G03B

Abstract:
A second camera system different from a first camera system in size of film to be used, said first camera system being composed of a first camera body having a first camera bayonet mount and using a film of a first size and a first interchangeable lens having a first lens bayonet mount which is connectable to said first camera bayonet mount of said first camera body, said second camera system comprising:a second camera body having a second camera bayonet mount of which an angle subtended by a circumferential length (defined herein as a ""configuration angle"") of one bayonet claw thereof is different from a configuration angle of a corresponding one of the bayonet claws of said first camera bayonet mount and using a film of a second size which is smaller than the first size, the number of bayonet claws of said second camera bayonet mount being equal to the number of bayonet claws of said first camera bayonet mount; anda second interchangeable lens having a second lens bayonet mount which is connectable to said second camera bayonet mount and of which a configuration angle of one bayonet claw thereof is different from the configuration angle of a corresponding one of the bayonet claws of said first lens bayonet mount, the number of bayonet claws of said second lens bayonet mount being equal to the number of bayonet claws of said first lens bayonet mount,wherein the configuration angles of the bayonet claws of said second camera bayonet mount are set such that said second camera bayonet mount is connectable to both said first lens bayonet mount and said second lens bayonet mount, and the configuration angles of the bayonet claws of said second lens bayonet mount are set such that said second lens bayonet mount is connectable only to said second camera bayonet mount.