Along with the Canon EOS C70 cinema camera launch, Canon also introduced a new broadcast zoom lens: the Canon CJ20ex5B. This 5.0- 100mm F/1.8-2.95 glass features a B4 lens mount, a built-in 2x extender, and it supports 4K resolution. Let’s take a closer look at it! The Canon CJ20ex5B is the brand’s latest addition to its remote control lenses lineup, called BCTV lenses. These high-quality 4K zoom lenses are made for broadcast cameras with a B4 lens mount and usually “small” 2/3-inch sensors. The Canon BCTV lineup consists of twelve portable lens options and six box-type lenses. All these zoom lenses feature a built-in 2.0x extender, which doubles their focal length. Also, all Canon BCTV lenses do have a zoom rocker, ideal for operating your camera on the shoulder. Canon CJ20ex5B. Image credit: Canon CJ20ex5B – Features The new Canon CJ20ex5B is a 20x wide-telephoto zoom lens, with a pretty generous 5.0-100mm range. If you activate the 2.0x extender, it becomes a 10-200mm glass.On the wide end, the Canon CJ20ex5B has a maximum aperture of F/1.8, which closes to F/2.95 at 100mm. As I already mentioned previously, the CJ20ex5B supports 4K resolution and is compatible with cameras that support chromatic aberration correction for BT.2020 color gamut. The CJ20ex5B comes with a 16-bit absolute value encoder that can read out highly accurate positional information of each lens settings – zoom focus and iris without initializing the lens. There are three 20pin connectors on the zoom rocker that enables the lens to...
Published By: CineD - Thursday, 24 September, 2020