Patent ID: 8770868
Filing Date: 2014-07-08
Classification: G03B,H04N

Abstract:
1. A camera accessory that is detachably fitted to a camera body including a camera body side mount, and that comprises an accessory side mount having a bayonet construction with first through third claws that are mutually separated around a circumferential direction along a circumference a circle with a predetermined diameter and that project in a radial direction from the circumference; wherein: when the accessory side mount has been inserted into the camera body side mount in a proper installation and detachment rotational phase, each of the first through third claws is permitted to be inserted into the camera body side mount without being hampered by three camera body side claws that are provided to the camera body side mount; the accessory side mount comprises at least a first limiting portion and a second limiting portion that is different from the first limiting portion; when the first through third claws are rotated in a first rotational direction along the circumferential direction in order to install the accessory side mount that has been inserted in the proper installation and detachment rotational phase into the body side mount, the first limiting portion limits a range of rotation in the first rotational direction by abutting an end surface of one of the camera body side claws; and when the first through third claws are rotated in a second rotational direction along the circumferential direction that is opposite to the first rotational direction in order to detach the accessory side mount from the body side mount, the second limiting portion limits a range of rotation in the second rotational direction by abutting an end surface of one of the camera body side claws.