Engineering:Broadcast lens

Broadcast lens in television industry are lenses used for broadcasting in television studio or on the location/field. Main manufacturers of broadcast lenses are Canon and Fujifilm's Fujinon brand. Broadcast lenses can be box-shaped, which are heavier and for use in limited range or classically shaped, lighter and for portable use.

Cameraman operating camera with broadcast lens during a sporting event.

Types

UHD Studio/field lens. Canon DIGISUPER 122AF.

8K portable broadcast lens. Fujifilm FUJINON HP12×7.6.

Lens are generally classified into three types:

• Studio zoom lenses, used mainly in the television broadcasting studio.
• Field zoom lenses, used for relay broadcasting of sports and other type of live events.
• Electronic news-gathering/Electronic field production (ENG/EFP) lenses, used for production of news and on-location events.

Features

Typically broadcast lenses have:

• Less focus breathing
• Variable focal lengths (18–35 mm)
• Zoom which maintains focus as the focal length changes (parfocal lens)
• Aspherical lens with fast and large lens aperture
• Servomotor control of zoom, focus and aperture via remote control handles
• Built-in image stabilization
• Multi-group zoom lens system

See also

• Cine lens
• Zoom lens
• Telephoto lens
• Wide-angle lens
• Camera lens