Cannon CJ20 ex7.8B 4k Lens
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Product description
Cannon CJ20ex7.8B 4K broadcast lens is a compact, lightweight 20x portable zoom lens designed for professional UHD and HDTV production. Ideal for news, documentary, sports, live events, and ENG/EFP applications, the CJ20ex7.8B delivers excellent optical performance with the mobility required for handheld and shoulder‑mounted shooting.
With a wide 7.8mm starting focal length and a versatile 20x zoom range, the CJ20ex7.8B enables operators to capture expansive wide‑angle shots as well as detailed telephoto images with confidence. Canon’s advanced optical design ensures high resolution, strong contrast, and consistent image quality across the entire zoom range, fully optimised for 4K acquisition.
The lens features a built‑in 2x extender, extending reach while maintaining 4K optical performance, along with optical image stabilisation to reduce camera shake in dynamic shooting environments. Its refined digital servo drive provides precise and responsive zoom, focus, and iris control, making the CJ20ex7.8B a reliable and versatile solution for modern broadcast workflows.
Technical Specifications
– Lens Mount: B4 (2/3” broadcast cameras
– Zoom Ratio: 20x optical zoom
– Focal Length: 7.8 – 312mm
