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Entertainment Technology News
Canon USA Introduces the KJ22ex7.6B HDgc Multi-Purpose Portable Zoom Lens for 2/3-Inch ENG Cameras
By Staff
posted Nov 23, 2009, 11:43 |
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Latest member of Canon's "Second-Generation" HDgc product line combines
cost-effective design innovations with high-end performance.
(Lake Success, NY) Continually advancing its product line with world-renowned
optical expertise, Canon U.S.A., Inc. has introduced the KJ22ex7.6B, the newest
member of its "second-generation" line of cost-effective HDgc portable HD lenses.
First introduced in 2006, the HDgc lenses were specifically intended to work
with the emerging wave of cost-effective HD camcorders from all major manufacturers
that were targeted at HD news-gathering and budget-conscious HD productions.
These lens families encompass the 2/3-inch, 1/2-inch, and 1/3-inch HD image
format sizes.
"Since Canon's introduction of our HDgc lens series, we have received enthusiastic
feedback from our worldwide community of users," stated Larry Thorpe, national
marketing executive, Broadcast and Communications division, Canon U.S.A. "Those
end-user experiences have helped guide the design of our second-generation line
of cost-effective HDgc portable HD lenses, starting with the KJ17ex7.7B portable
2/3-inch HD zoom lens, which was introduced earlier this year at NAB. The new
KJ22ex7.6B is the second in this 2/3-inch family of lenses. These lenses retain
the robust magnesium optomechanical design of our higher-end lenses, as this
cannot be compromised in ENG applications. Canon's mobilization of contemporary
design tools and optical materials have facilitated a significant cost reduction,
while still maintaining an impressive overall HD imaging performance."
The Canon KJ22ex7.6B is designed as a multi-purpose telephoto lens. Striking
an excellent balance between size, weight, and exceptional optical performance,
the lens encompasses 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 feature
provides camera operators with ?exible image- framing options, especially for
outdoor shooting. Additional design optimizations include 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 also been reduced by use of special optical materials that include Fluorite
and Hi-UD glasses. Extensive computer optimization of both the optical and optomechanical
designs contributed to achieving a high-performing telephoto lens within a compact
and lightweight body.
Ease of use and reduced operator fatigue were specific design imperatives of
the new Canon KJ22ex7.6B, with particular emphasis on a re-designed Digital
Drive unit for greater operator comfort and convenience. The Digital Drive unit
enables users to program precise and repeatable settings into the KJ22ex7.6B
lens for zoom position and speed, focus, and iris. An information display built
into the Digital Drive unit makes precise customization quick and convenient.
Users can program as many features as they wish, or, if they prefer, none at
all. This new unit was designed to improve the tactile interface for the control
of zoom, iris, and focus functions. Improvements include widening the spacing
between the focus ring and the Digital Drive unit so operators are less likely
to accidentally change settings while manipulating the focus control. Of particular
importance, Canon incorporated a new software platform within the Digital Drive
unit that allows the KJ22ex7.6B to work with the different chromatic aberration
correction systems developed by various camera manufacturers.
Resources:
Canon USA: www.usa.canon.com/kyosei
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