Canon KT14X4.4B-KRS HDMP Lens

The new KT14x4-4B KRS is designed as an affordable, yet high-performance portable wide-angle HD zoom lens for all brands of professional HD cameras using 1/3-inch imagers. The new KT14x4.4B KRS features a small and compact body and sophisticated features leveraged from Canon’s advances in high-end optical engineering. These include special optical coatings to minimize ghosting, flare, and other optical aberrations caused by strong light sources, and high MTF (Modulation Transfer Function; simply stated, a measure of lens sharpness and contrast detail performance) with no alteration in the lens’ maximum relative aperture throughout its entire zoom range. The KT14x4.4B KRS delivers the widest angle of view in its class, at 64.1 degrees in the 16:9 HDTV aspect ratio. The KT14x4.4B KRS represents a fine compromise between the demands for mobility in a handheld HDTV camera system and the high imaging performance requirements for 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. Relative light distribution was optimized for the more open aperture settings and this uniformity of brightness across the image plane combined with the high contrast and excellent picture sharpness to produces vividly clear HD pictures. Contrast was extended by careful control of black reproduction – with optical and mechanical design innovations that substantially reduced flare, veiling glare, and any internal reflections. Tight control of the 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.