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Canon KJ22ex7.6B IRSE
2/3" HDgc Semi-Servo Telephoto ENG Lens

OUR PART #:  KJ22EX7.6B-IRSE

The KJ22ex7.6B IRSE is part of a new family of second generation 2/3-inch HDgc portable HD lenses from Canon.
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List Price: $29,300.00

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The KJ22ex7.6B IRSE is part of a new family of second generation 2/3-inch HDgc portable HD lenses from Canon. The new design reflects design refinements to the first generation line of HDgc lenses originally introduced in 2006. The IRSE version of this lens has a Servo/Manual Zoom control and a Manual Focus control.

The new KJ22ex7.6B IRSE is a telephoto lens covering a generous range of focal lengths while also providing a modest wide-angle of almost 65 degrees in the 16:9 HD image format. This provides a very flexible image framing range especially for outdoor applications. The central design criteria for this new lens sought an excellent balance between size, weight, and HD optical performance intended for HD News and many HD production applications. Customer recommendations based upon experiences with our first generation HDgc telephoto lens combined with the harnessing of new optical design strategies and new advanced optical materials to produce an excellent overall price performance ratio for the new KJ22ex7.6B IRSE.

The optical performance of the KJ22ex7.6B IRSE has been improved on a number of fronts compared to its predecessor KJ21ex7.6B IRSE. The new lens deploys Large Diameter Aspherical lens elements that contribute to a better control of comatic aberration, geometric distortion, and corner resolution. Curvature of field and chromatic aberrations have been reduced by use of special optical materials that include Fluorite and Hi-UD glasses. Computer optimization of both the optical and optomechanical designs contributed to achieving a high-performing telephoto lens within a compact and lightweight body.

Coupled with innovations in optical performance, is a totally new design of the digital drive unit. Refined by long-term market research and worldwide experience, Canon utilized the latest in 3D CAD-CAM design to significantly improve the human tactile interface to the control of zoom, iris, and focus.

Features:

  • Optical Technologies: Newly developed optical glass materials each having unique dispersion characteristics allowed improved control over chromatic aberrations and geometric distortion. Lens element surface accuracy has been improved two-fold over those in the earlier HDgc lenses contributing to the improved MTF performance New Multilayer Optical Coatings combined with new deposition processes produce an improved optical contrast ratio Three-part Internal Focus is a Canon design innovation that reduces changes in aberrations when focusing to different object distances while also exercising improved control over any tendency for focus breathing New and more powerful computer design tools facilitated a greater degree of optimization of multiple optical variables in the lens design.  
  • Digital Technologies: 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 Roofmirror 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).  
  • Optomechanical Technologies: 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.  
  • Ecological Design: All contemporary Canon lenses avoid the use of materials and substances potentially harmful to the environment. Lead has been removed from all optics and other identified substances from all components comprising the composite lens system.

Specifications:

Product 

  • Product Category: ENG Lens
  • Product Series: KJ22ex7.6B Series

Image Composition 

  • Object Image Format: 2/3 Inch 16:9 Aspect Ratio
  • Object Image size: 9.59 mm (H) x 5.39 mm (V)
  • Zoom Ratio: 22 X
  • Focal Length Range: 7.6~168mm
  • Focal Length Range with Extender: 15.2~336mm
  • Angular Field of View: 
      -  At 7.6mm 64.6° (H) x 39.1° (V)
      -  At 168mm 3.3° (H) x 1.8° (V)
  • Angular Field of View with Extender:
      -  At 15.2mm 35.1° (H) x 20.1° (V)
      -  At 336mm 1.6° (H) x 0.9° (V)

Optical Brightness 

  • Maximum Relative Aperture (F-Number):
      -  At 7.6mm~116.3mm 1 : 1.8
      -  At 168mm (Ramping Characteristic) 1 : 2.6
  • Maximum Relative Aperture (F-Number) with Extender:
      -  At 15.2mm~232.6mm 1 : 3.6
      -  At 336mm (Ramping Characteristic) 1 : 5.2

Scene Composition 

  • MOD From Front of Lens: 0.8 Meter (10mm with Macro)
  • Scene Object Dimensions at MOD:
      -  At 7.6mm 95.0 cm x 53.4 cm
      -  At 168mm 4.4 cm x 2.5 cm

Physical Attributes 

  • Width: 164.7mm
  • Height: 112.1mm
  • Size Length mm: 218.6mm
  • Weight: 1.82kg / 4.0lbs
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