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aperture of an antenna ['æpəʧə] n
antenn.	odprtina antene; sevalna odprtina antene
aperture ['æpəʧə] adj.
nat.sc., el.	svetla površina kolektorja
English thesaurus
aperture ['æpəʧə] abbr.
abbr., oil	ap; aper
cinema	A measure of the width of the opening allowing light to enter a camera. The apparent diameter of a lens viewed from the position of the object against a diffusely illuminated background is called the "effect aperture". The ratio of focal length of a lens to its "effective aperture" for an object located at infinity is called the "relative aperture", or "f/number". Larger apertures allow more light to enter a camera, hence darker scenes can be recorded. Conversely, smaller apertures allow less light to enter, but have the advantage of creating a large depth of field. See also shutter speed.

aperture: 12 phrases in 5 subjects

Antennas and waveguides	6
Information technology	1
Medical	1
Natural sciences	3
Technology	1