Canon U.S.A., Inc. | XA30 Though small in size, this camcorder sacrifices nothing when it comes to professional functionality. It features a “seesaw” style zoom lever, manual focus/zoom ring and joystick for easy control and an electronic viewfinder that can tilt up to 45° for low-angle shooting. It also has five Assign Buttons to help it fit to your operational needs. Solved: The manual focus ring on my 18 - Canon Community Solved: The manual focus ring on my Canon 18-135mm EF-S spins freely whether the switch is in the AF or MF position. It does not alter the focus.