Our new, premium 4K flagship broadcast lens, the 4K UHD-DIGISUPER 86 (UJ86x9.3B) is our most refined long zoom broadcast lens designed to support 4K UHD broadcast systems. Advanced design technologies, optical components and manufacturing processes were used to produce an extremely high overall optical performance that exceeds basic 4K criteria, and maximize the output video image performance when used with the most sophisticated 4K UHD cameras. The lens embodies state of the art optomechanical and electronic advances, working to exceed the expectations of the world's outside broadcast television operators.
The 4K UHD-DIGISUPER 86 (UJ86x9.3B) broadcast lens offers a wide angle setting of 9.3mm that can be altered all the way to an impressive telephoto setting of 800mm, while maintaining full 4K overall optical image quality over that extended range. This 86x zoom range offers superb image framing options for all forms of outside broadcast television productions. This extensive framing latitude can dramatically capture all possible on-site sensations - from the emotion of an entire crowded stadium to other emotions expressed in the close-ups of facial expressions of individual players on the field.
The highest attention was paid to making the highest Modulation Transfer Function (MTF) possible at picture center, and tightly maintaining this throughout the entire focal range of the 4K UHD-DIGISUPER 86 (UJ86x9.3B) broadcast lens, over a wide range of scene subject distances. New design strategies were used to sustain a high MTF from picture center across the entire image plane to help make the highest subjective 4K image sharpness possible. These new design strategies and optical materials were utilized to help lower the monochromatic and the chromatic optical aberrations to a level consistent with the highest quality 4K portrayal on large screens.
A particular challenge to the 4K UHD-DIGISUPER 86 (UJ86x9.3B) broadcast lens design is the built-in 2x optical extender. The insertion of that additional optical subsystem tends to exacerbate optical aberrations. Accordingly, Canon paid the utmost attention to the optical design of this unit and as a consequence full 4K optical specifications are protected when the extender is switched in.
A persistent challenge for long telephoto lenses is image blur caused by inadvertent movements of the lens, often caused by to vibrations due to wind, when mounted on towers. This becomes a larger issue when 4K image resolution is sought. The latest state of the art optical shift-type image stabilizer system (empowered by a powerful new digital servo control loop), helps facilitate high-speed precision deflection of light rays being transmitted through the lens, serving to counteract (in real time) their displacement by inadvertent outside movements of the lens.
Great consideration was given to the requisite precision mounting of all optical elements required to maintain full 4K performance over the extended focal range of the 4K UHD-DIGISUPER 86 (UJ86x9.3B) broadcast lens. Ensuring precision focus tracking over that long zoom rage was a central design priority. Digital servo speed has been optimized to meet the many operational requirements that support creative coverage of sporting events. Advanced, contemporary optomechanical design strategies were used to produce an overall lens size that contributes to its operational ease.
The 4K UHD-DIGISUPER 86 (UJ86x9.3B) broadcast lens utilizes the same standard controllers for zoom and focus operations that have been optimized over decades of Canon HDTV field lens developments. The lens also uses the standard Canon 20-pin connector that provides an interface for the digital precision positional information of the zoom, focus, and iris operations required by many external virtual systems.