A lens with a focal length smaller than 25mm in 16mm, or 50mm in 35mm, which, like looking into the wrong end of a pair of binoculars, provides an extended view of a large area.thepolliofolioglossaryofcinematographyterms
Angle of view greater than that of human eye. With full-frame cameras, refers to focal lengths shorter than 50mm.
A camera lens with a wider view than that of a standard lens. Wide-angle lenses have a focal length smaller than the diagonal size of the film format.
Angle of view refers to the area or amount of a scene that a photograph can capture, and it is determined by the focal length of the lens in use.
A network that spans a large geographical area.
The focal length that gives you the widest angle of view. I.e. 10mm, 16mm, 24mm etc.