Canon YH 19x6.7 Series SDTV Pro-Video Len
Canon Updated: 2007-06-18The YH19x6.7 is wide angle of view portable ˝-inch Pro-Video lens offered by Canon to support diverse program origination. It is a key member of a family of five portable ˝-inch lenses that collectively support a broad range of business & industrial and corporate production applications.
This This particular lens is intended for producers and broadcasters having as their foremost priority wide angle shooting with a lightweight mobile production lens-camera system that offers exceptional HDTV performance.
The YJ19x6.7 utilized breakthrough technologies and powerful computer-aided design techniques to produce a very wide-angle HDTV lens in a modest 4.3 lb package. It is a design directly responding to the expressed creative desires of broadcasters and HD producers for a truly versatile HD acquisition system. The optional flexibility of Canon’s Crossover aspect ratio switching system makes it a superb performer for both 16:9 widescreen and standard 4:3 image formats.
ABOUT THIS LENS
The YJ19x6.7 represents a magnificent compromise between the demands for mobility in a handheld HDTV camera system and the exacting performance requirements for high-end HDTV production. The requisite optimization strategies to achieve this balance sought a high MTF over the entire image plane, minimization of chromatic aberrations, and maximization of image contrast. Preservation of the highest MTF at the wider angle focal lengths (where scene detail can be particularly high) was a special priority.
Relative light distribution was optimized for F2.8 and above and this uniformity of brightness across the image plane combines with the high contrast and excellent picture sharpness to produce vividly clear HD pictures. Contrast was extended by superb control of black reproduction - with optical and mechanical design innovations that substantially reduced flare, veiling glare, and any internal reflections. Similar attention to minimization of ghost images and other highlight-related chromatic distortions caused by strong light sources on-axis and off-axis further extend the operational contrast range of the lens.
Tight control of the critically important geometric distortion at wide-angle settings constituted another central design imperative. The lens spectral transmittance characteristic was closely coordinated with that of all of the major portable cameras to ensure adherence to the HDTV colorimetric standards and to additionally support flexible creative control of color reproduction.
YH19x6.7 IRS/KRS
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