Provided are a setting device and a camera that are capable of preventing erroneous operations with compact configurations and have high operability. A display section is provided on an upper surface of a shutter speed dial. The display section displays settable shutter speeds and an image picture of a lock button. A touch sensor detects contact with the upper surface of the shutter speed dial, and switching of the shutter speed by the shutter speed dial is locked and unlocked every time the contact is detected.