Century Optics .6x Wide Angle Adapter Lens with Bayonet Mount for the Panasonic HVX-200 Camera Ideal for shooting situations in which zooming isn't needed. The .6X attaches tothe front of your video zoom lens for 40% wider angle of view and minimal distortion. It allows partial zooming up to mid-range while in Auto Focus (loses focus beyond 5X). The resulting focal length is 2.5-14.9mm with a 87.7-18.3 horizontal angle of view). Comes in the popular Bayonet Mount that attaches with a twist to the front of your HVX200 13X lens.