All of these long-field HD zoom lenses also utilize Canon’s second-generation digital servo systems for improved ease-of-operation and superb tactile control of zoom, iris, and focus, precision repeatability of settings, and microcomputer compensation of lens-focus breathing (the inadvertent alteration of field-of-view when operating the focus control).Canon’s HJ14ex4.3B portable HD zoom lens combines an extended 14 times zoom range with a minimum focal length of 4.3mm and an angular field of view of 96.3 degrees at the wide end of the 16:9 HD aspect ratio, making it an exceptional wide-angle portable HD lens. The 14x zoom range of this lens reaches to 60mm (120mm with extender), which greatly expands creative options for the acquisition of clear HD video images. Canon’s mastery of computer-based optical design techniques and new multi-layer optical coating technologies help to ensure superb imaging performance with minimum distortion. The KJ20x8.2B portable HD lens is the newest member of Canon’s cost-effective HDgc Series of portable HD zoom lenses. Advanced features of the KJ20x8.2B include its built-in 2x extender, an important imaging feature (previously seen on higher-end HD lenses) that provides camera operators with greatly improved subject-framing flexibility. The KJ20x8.2B is also Canon’s widest (8.2 mm) lens in the affordable 20x zoom class, and it covers a generous range of focal lengths, particularly when combined with its built-in 2x extender expanding its 8.2mm-164mm focal length to 16.4mm-328mm. In addition to the two extra KJ20x8.2B portable HD lenses purchased for CSP Mobile Productions’ HD-1 and HD-3, those trucks are also equipped with previously purchased Canon XJ100x9.3B, XJ86x9.3B, and XJ72x9.3B long-zoom HD field lenses and eight HJ22ex7.6B portable HD ENG lenses. Canon’s HJ22ex7.6B is the Company’s longest focal length range portable HD zoom lens offered (without an image stabilization system). The HJ22ex7.6B, HJ14ex4.3B, and KJ20x8.2B all feature Advanced Drive Unit technology for precise, automated repeatability of select lens settings, which can be a handy feature for fast-moving sports coverage.