Caution To enhance water and dust resistance, the Extender EF1.4X III and EF2X III have a rubber ring around the mount. As the lens is repeatedly mounted and detached, the rubber ring will leave fine abrasion marks on the outside of the camera mount. This will not affect operation
At NAB 2014 Grass Valley ignited the 4K 2/3-inch movement with the unanticipated showing of a prototype of what is now the LDX 86 Universe three-CMOS sensor camera system that has the ability to switch the camera from 4K UHD 1 X operation to HD 6 X extreme-speed operation. ... The rising number of sports leagues, broadcasters, and mobile production operators who have been expressing interest in the possibilities offered by the 2/3-inch 4K UHD acquisition system generally voice five key expectations:
The broadcast lens design group of Canon has serviced the world’s broadcasters, production studios, and mobile production facilities for many decades. ... Canon’s optical design teams spent a considerable time using powerful computer aided simulation tools to explore the possibilities in reconciling very high 4K specifications with a variety of novel design strategies that would collectively contribute to a unique Canon Personality in the new cine zoom lenses.
