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HDTV Portable HDgc Lenses
Canon Store: $
New fourth-generation digital servo systems further empowers the camera operator in terms of operational creativity: Enhanced Digital Drive technology based upon a totally new software platform provides precision microcomputer control of the three servo systems for zoom, iris and focus while also facilitating new developments in lens-camera correction of lateral chromatic aberration Unique Information Display and extended memory within the digital drive unit extends user-defined digital functionality Canon’s patented Micro Roof mirror Array (MRA) technology underlies the unique miniature 16-bit rotary encoders that are used for each of the zoom, iris, and focus position detection (each with a positional accuracy of 0.1 micrometer) Dynamic Zoom Speed Range can be adjusted from 0.5 seconds to 5 minutes (from wide to telephoto extremes)
Extensive use of 3D CAD-CAM design facilitated a design that paid high attention to operator comfort and attendant lowering of fatigue during protracted shooting: Digital Drive Unit was totally redesigned to take into account the curved human hand that encompasses the unit with a view of shaping the unit for greater comfort and to better facilitate the actuation of lens controls. The unit shape also provides a wider separation that allows the other hand to more easily adjust the focus control. Finally, the drive unit was narrowed and its mounting angle on the lens set to allow the operator’s elbow to settle close to the body thus providing an important reduction in fatigue when operating a shoulder mounted lens-camera system Special Magnesium alloy body for light weight and exceptional durability Computer simulation of the optomechanical design allowed examination of optimized anti-reflection internal barrel coatings, and structural techniques (light blocking grooves and knife edges) that produced greater control over harmful light reflections within the lens barrel that can be stimulated by strong light sources
Object Image Format
Object Image size
Focal Length Range
Focal Length Range with Extender
Angular Field of View
At 168mm 3.3° (H) x 1.8° (V)
Angular Field of View with Extender
At 336mm 1.6° (H) x 0.9° (V)
Maximum Relative Aperture (F-Number)
At 168mm (Ramping Characteristic) 1 : 2.6
Maximum Relative Aperture (F-Number) with Extender
At 336mm (Ramping Characteristic) 1 : 5.2
MOD From Front of Lens
Scene Object Dimensions at MOD
At 168mm 4.4 cm x 2.5 cm
Size Length mm mod1
† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.