Standard ENG/EFP lens

The HJ21ex7.5B/IASE A anwers the pressing demands of broadcast newsgathering and for low-weight and high-mobility and the exacting performance requirements for HDTV acquisition. Superb optimization strategies helped achieve the sought-for performance – having a high sensitivity, an excellent MTF profile over the entire image plane, minimization of chromatic aberrations, and maximization of image contrast. The maximum aperture of f 1.8 makes this lens eminently suited to low-light newsgathering acquisition.

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.

Digital Technologies

New third-generation enhanced digital servo systems using Canon-developed 16-bit optical rotary encoder devices introduce new creativity to handheld acquisition systems. Enhanced Digital Drive technology - encompasses a microcomputer driven servo control that embodies position memory and user-defined digital functionality to significantly empower the camera operator. A 16-bit rotary encoder for aperture control reports to the associated camera Iris control system (10-bit compatibility). Maximum Zoom speed is 0.5 seconds and Focus is 1.5 seconds

Optical Technologies

Power Optics - combination of specialized materials, contemporary optical design, and multilayer coatings that produce the superb imagery
Internal Focus - a Canon design innovation that uses a floating optical system to better control chromatic aberrations
Crossover Technology - switchable operation between 16:9 and 4:3 aspect ratio imagery

Mechanical Technologies

Compact digital servo drive unit is mounted to the lens at a 12.5 degree angle for comfort and balance. Magnesium alloy body for light weight and exceptional durability