Over the past decade, as the demand for broadcast HDTV production has continued its steady growth, Canon's HJ11ex4.7B lens has been a popular HDTV wide-angle lens, earning a stellar global reputation for outstanding optical performance and ease of operation. Capitalizing on this legacy of imaging excellence, Canon is expanding the possibilities of HDTV origination with the launch of an even more advanced wide-angle lens, the HJ14ex4.3B. This is a totally new-generation lens design and is particularly innovative in combining an extended 14 times zoom range and unprecedented 4.3mm wide angle, with an enhanced overall optical performance. Unequalled image clarity and sharpness were the design goals.
Even the digital drive-unit is newly developed to provide streamlined ergonomics and ease of operation that further empowers camera operator shooting flexibility.
Widest Angle Lens To Date in the TV Industry |
Angle Image of HJ11ex4.7B ( 91.2 ) |
With a minimum focal length of 4.3mm the HJ14ex4.3 lens features the widest angle among presently available 2/3-inch lenses with an angular field of view of 96.3 in the 16:9 format at the wide end. This is significantly augmented with the 14x zoom range reaching to 60mm (120mm with extender), producing an unsurpassed operational combination that greatly expands HDTV production applications.
Improved Optical Performance
The past decade has seen dramatic advances in powerful new 3D optical design tools, glass materials, design techniques (such as aspherical elements), and optical coatings. These new technologies allow the HJ14x lens to provide a wider angle and a higher zoom ratio than previous models, while also offering important optical performance enhancements:
Higher resolution at both picture center and at the extremities of the 16:9 HD image plane
Further minimization of chromatic aberrations and geometric distortion
Less light falloff from picture center to corners, especially at wide angle settings
Reduced focus breathing
Curtailment of ghosting artifacts created by strong light sources
Improved Operability & Reduced Operator Fatigue
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 mobilized the latest in 3D CAD-CAM design to significantly improve the human tactile interface to the control of zoom, iris, and focus. Here are some results of Canon's research:
New HJ14ex4.3B ( 96. 3 )
Broad Focal Length of 4.3-60mm
Reduced Physical Stress |
Ergonomic Design |
Improved Ease of Operation |
By reducing the width of the drive unit, the palm of the camera operator's hand is positioned closer to the optical axis, thus reducing the degree of arm bend which in turn lessens physical stress during prolonged shooting.
The spacing between the focus ring and drive unit has been changed to avoid accidental interference with the drive unit while manipulating the focus control.
The size and curvature size have been optimized to more comfortably fit in the palm of the operator's hand (a). Newly developed coatings improve the tactile interface between the user and the drive unit (b) together with the new Rubber Grip Support (c).
Smaller Hood Size and Higher Versatility
The HJ14ex4.3 uses a smaller hood unit compared to it's |
Hood Unit of HJ11ex |
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predecessor. While increasing the versatility of the camera, |
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this also helps the camera operator view the actual scene. |
Hood Unit of HJ14ex |
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