Fast Lens

Fast Lens
A fast lwens refers to a lens that is capable of opening to a very low f-stop, generally lower than 2.8, and therefore let's more light into the lens. Fast lenses can better handle low-light shooting situations and are generally more versatile and faster to shoot with, since you have less lighting hassles and can use filters more freely. Naturally, fast lenses are more expensive than other lens.

Audio and video glossary. 2014.

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  • fast lens — stiprusis objektyvas statusas T sritis fizika atitikmenys: angl. fast lens; high power objective; rapid lens vok. lichtstarkes Objektiv, n rus. светосильный объектив, m pranc. objectif de grande clarté, m …   Fizikos terminų žodynas

  • Lens speed — refers to the maximum aperture diameter, or minimum f number, of a photographic lens. A lens with a larger maximum aperture (that is, a smaller minimum f number) is a fast lens because it delivers more light intensity (illuminance) to the focal… …   Wikipedia

  • fast — fast1 [fast, fäst] adj. [ME < OE fæst, akin to Ger fest, firm, stable < IE base * pasto , fixed, secure > Arm hast] 1. not easily moved, freed, or separated; firm, fixed, or stuck [the ship was fast on the rocks] 2. firmly fastened or… …   English World dictionary

  • Lens Speed — WikiV The ability of a lens to transmit light, represented as the ratio of the focal length to the diameter of the lens. The largest lens opening (smallest f number) at which the lens can be set. A fast lens transmits more light and has a larger… …   Audio and video glossary

  • lens speed —    The largest lens opening (smallest f number) at which a lens can be set. A fast lens transmits more light and has a larger opening than a slow lens. Is a measure of the light gathering power of a lens …   Forensic science glossary

  • fast — I. /fast / (say fahst) adjective 1. moving or able to move quickly; quick; swift; rapid: a fast horse. 2. done in comparatively little time: a fast race; fast work. 3. indicating a time in advance of the correct time, as a clock. 4. extremely… …  

  • fast — fast1 W3S2 [fa:st US fæst] adv ▬▬▬▬▬▬▬ 1¦(moving quickly)¦ 2¦(in a short time)¦ 3 fast asleep 4 be stuck/held fast 5 be getting/be going nowhere fast 6 not so fast 7 fast by something ▬▬▬▬▬▬▬ 1.) ¦(MOVING QUICKLY)¦ moving quickly …   Dictionary of contemporary English

  • fast — 1. adjective 1 MOVING QUICKLY a) moving or travelling quickly: Burell is the fastest runner in the world. | The first pitch was fast and hard. b) able to travel or move very quickly: a fast car. | The horse was fast but not a good jumper. 2 IN A… …   Longman dictionary of contemporary English

  • Lens (Gattung) — Linsen Linse (Lens culinaris) Systematik Klasse: Dreifurchenpollen Zweikeimblättrige (Rosopsida) …   Deutsch Wikipedia

  • Lens culinaris — Linse Linse (Lens culinaris) Systematik Unterklasse: Rosenähnliche (Rosidae) …   Deutsch Wikipedia

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