Patent ID: 7917029

Claim:
A camera system comprising: a body; a lens module configured for attachment to and detachment from the body; a lens module insertion part mounted on a surface of the lens module that faces the body; a mount part for detecting insertion of the lens module insertion part into the body to mount the lens module on the body, the mount part comprising: a mount into which the lens module insertion part is inserted; a lens detector for detecting insertion of the lens module insertion part into the mount; a mount connector for fixing the lens module insertion part; and a driver for driving the mount connector when the lens detector detects the insertion of the lens module insertion part wherein the mount connector comprises: a connection gear having a substantially cylindrical shape; a screw element having a screw thread that is disposed on an inner surface of the connection gear and combined with the lens module insertion part; and a rotation contacting element disposed on an outer circumferential surface of the connection gear and receiving driving power from the driver via contact.