CONTACT US AT 800-321-4726

KH21ex5.7 IRSE HDgc 21x XDCAM HD Lens

MFR Part #: KH21EX5.7 IRSE
Samy's Part #: CANOKH21EX57IRS
This Item Is No Longer Available




Items Included

Rate & Review

The KH21ex5.7 IRSE HDgc 21x XDCAM HD Lens by Canon is a telephoto portable HDTV production lens within the 1/2-inch image format sector of the HDgc family. This particular lens is intended for producers and broadcast and cable news photographers having as their foremost priority the ability to shoot over long distances combined with reasonably wide angle capture in a lightweight (4.1 lbs) mobile production lens system having very good HDTV performance. It was specifically designed for the new HD XDCAM camcorders of Sony, which utilize three 1/2-inch 1440-element CCD imagers. It is an important member of the emerging HDgc family in terms of facilitating HD imaging with equivalent operational capabilities as the established 2/3-inch SDTV systems.

The KH21ex5.7 mobilized the best in portable EFP optical design criteria to achieve a remarkable lens offering focal lengths up to 120mm (or 240mm with extender) and a wide-angle of almost 63 degrees horizontal. Combined with an exceptionally high sensitivity (F1.4 maximum aperture) this is a lens that can encompass an unusually broad range of shooting situations.

The KH21ex5.7 utilized breakthrough technologies and powerful computer-aided design techniques to produce a very wide-angle HDTV lens with an excellent performance-cost optimization. It is a design directly responding to the expressed creative desires of broadcasters and HD producers for low-cost HD acquisition system.

  • Telephoto 1/2 In. portable HD lens - The new KH21ex5.7 IRSE is a1/2 In. portable HD telephoto lens specifically designed to support a range of corporate and business industrial applications. The KH21ex5.7 achieves a remarkable lens offering with focal lengths of up to 120mm (or 240mm with extender) and a wide-angle of almost 63 degrees horizontal.
  • Optical Technologies - Newly developed optical materials combined with the very latest lens element design innovations and multilayer coatings - that produce an unsurpassed pristine imaging system for the most discerning production team.
  • Internal Focus - A Canon design innovation that uses a floating optical system to better control chromatic aberrations.
  • Digital Technologies - Enhanced Digital Drive technology 16-bit rotary encoder for aperture control reports to the associated camera Iris control system (10-bit compatibility) Maximum Zoom speed is 0.5 seconds and Focus is 1.5 seconds.
  • Mechanical Technologies - Compact digital servo drive unit is mounted to the lens at a 12.5 degree angle for comfort and balance. Magnesium alloy body for light weight and exceptional durability.
  • 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.

Customers Also Browsed

  • Rokinon - 14mm T/3.1 Cine Lens for Canon
  • Rokinon - 50mm T1.5 AS UMC Cine DS Lens for Sony E Mount
  • Sigma - 18-35mm T2 Cine Lens for Sony
  • Rokinon - 14mm T/3.1 Cine Lens for Nikon
    Special Order
    Call to Order: 1-800-321-4726
  • Rokinon - 12mm T3.1 ED AS IF NCS UMC Cine DS Fisheye Lens for Sony E-Mount
  • Sony - FE 35mm f/1.4 Distagon T* ZA Lens
  • Rokinon - 85mm T/1.5 Cine Lens for Sony E Mount Cameras
  • Rokinon - 85mm T1.5 Cine DS Lens for Sony E-Mount
  • Rokinon - 14mm T3.1 Cine DS Lens for Nikon F Mount
  • Rokinon - 85mm T/1.5 Cine Lens for Nikon
  • Sigma - 85mm T1.5 FF High Speed Prime Lens for Sony E Mount
  • Rokinon - 35mm T1.5 Cine DS Lens for Sony E-Mount
Lens Information
Lens Mount Bayonet
Focal Length 5.7-120mm (21x Zoom) 11.4-240mm (2x Extender)
Aperture Range Without Extender f/1.4 at 5.7-86mm f/1.95 at 120mm With Extender f/2.8 at 11.4-172mm f/3.9 at 240mm
Length 21.8 cm
Maximum Diameter Width 16.9cm
null 1/2 In. CCD, 16:9
Angle Of View Without Extender 62.9 degree. at 5.7mm 3.3 degree. at 120mm With Extender 31.5 degree. at 11.4mm 1.7 degree. at 240mm
Weight 4.1 lb (1.9 kg)
  • Lens Hood
  • Front and Rear Lens Cap
  • 1 Year Parts and Labor Warranty
Be the First to write a Review.
See any errors? Let us know.
Copyright © 2017 Samy's Camera All rights reserved. Terms & Conditions | Privacy & Security Policy
Price, images, specifications and descriptions of items are subject to change without notice. We are not responsible for typographical or photographical errors. Rebates & conditions, and expiration dates from manufacturers are subject to their authorization.