Very affordable telephoto lens with great performance and shuttle shot technology
The KJ20x8.5B KRSD is a very affordable 2/3” portable telphoto lens lens with excellent focal range and optical performance. Ergonomic design creates improved handling with less fatigue.
The KJ20x8.5B KRSD and the HDgc line of lens have been specifically designed for low cost tapeless HD camcorders and this lens is particularly well suited to HD Reality TV, newsgathering and other low budget HD productions.
The KJ20x8.5B KRSD is an excellent multipurpose HD lens offering focal lengths up to 170mm and a wide-angle of almost 55 degrees horizontal. Combined with an exceptionally high sensitivity (F1.8 maximum aperture) this lens offers excellent operational capabilities at a very affordable price in a compact package weighing 1.27kg.
The lens has high MTF over the entire image plane, minimization of chromatic aberrations, and maximization of image contrast. Relative light distribution is optimized for the more open aperture settings and uniformity of brightness across the image plane combined with the high contrast and excellent picture sharpness produces vividly clear HD pictures. Contrast is extended – flare, veiling glare, and any internal reflections have been substantially reduced. It has tight control of the geometric distortion at wide-angle settings and spectral transmittance characteristic adheres to HDTV colorimetric standards.
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.
A Canon design innovation that uses a floating optical system to better control chromatic aberrations.
Enhanced servo system called Shuttle Shot that adds value-added creativity to handheld acquisition systems.
Encompasses servo control that allows the operator to precisely zoom between tow pre-programmed zoom positions. Maximum Zoom speed is 1.2 seconds over entire range.
Ergonomic mechanical design with a compact drive unit that is mounted to the lens at a 12.5 degree angle for comfort and balance. Aluminum alloy body for light weight and exceptional durability.
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.