With the widest angle of any lens available, the DIGISUPER 27 has a focal length of 6.5mm to 180mm. The lens offers the optional BWA-271 0.9x Wide Attachment, the industry's first wide-angle attachment for an HD studio lens. This zoom-through Wide Attachment enables users to begin with a wide shot and go telephoto without experiencing negative effects on light transmission. This feature alters the range of the zoom on wide settings by ten percent toward the wide side, making a new zoom range of 5.85mm to 162mm.