Canon BWA-271 0.9x Wide Attachment with Hood for XJ27x6.5B / XJ27x6.5B AF DIGISUPER 27 2/3" Studio Lens is 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.