Canon's 20x Professional L-Series Fluorite lens for the XL2 is the equivalent, in 35mm format, of a 42.3 - 846mm lens when the camera is recording in

Canon's 20x Professional L-Series Fluorite lens for the XL2 is the equivalent, in 35mm format, of a 42.3 - 846mm lens when the camera is recording in 16:9 widescreen format. When the 20x Professional L-Series Fluorite lens for the XL2 is recording video in the TV-standard 4:3 aspect ratio, it is the equivalent, in 35mm format, of a 51.8 - 1036mm lens.