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- Focal_length abstract "The focal length of an optical system is a measure of how strongly the system converges or diverges light. For an optical system in air, it is the distance over which initially collimated rays are brought to a focus. A system with a shorter focal length has greater optical power than one with a long focal length; that is, it bends the rays more strongly, bringing them to a focus in a shorter distance.In most photography and all telescopy, where the subject is essentially infinitely far away, longer focal length (lower optical power) leads to higher magnification and a narrower angle of view; conversely, shorter focal length or higher optical power is associated with a wider angle of view. On the other hand, in applications such as microscopy in which magnification is achieved by bringing the object close to the lens, a shorter focal length (higher optical power) leads to higher magnification because the subject can be brought closer to the center of projection.".
- Focal_length thumbnail Focal-length.svg?width=300.
- Focal_length wikiPageID "82269".
- Focal_length wikiPageRevisionID "606201299".
- Focal_length align "center".
- Focal_length caption "210".
- Focal_length caption "28".
- Focal_length caption "50".
- Focal_length caption "70".
- Focal_length footer "An example of how lens choice affects angle of view. The photos above were taken by a 35 mm camera at a fixed distance from the subject.".
- Focal_length footerAlign "center".
- Focal_length hasPhotoCollection Focal_length.
- Focal_length image "Angleofview 210mm f4.jpg".
- Focal_length image "Angleofview 28mm f4.jpg".
- Focal_length image "Angleofview 50mm f4.jpg".
- Focal_length image "Angleofview 70mm f4.jpg".
- Focal_length width "150".
- Focal_length subject Category:Geometrical_optics.
- Focal_length subject Category:Length.
- Focal_length subject Category:Science_of_photography.
- Focal_length comment "The focal length of an optical system is a measure of how strongly the system converges or diverges light. For an optical system in air, it is the distance over which initially collimated rays are brought to a focus.".
- Focal_length label "Brandpuntsafstand".
- Focal_length label "Brennweite".
- Focal_length label "Distancia focal".
- Focal_length label "Distância focal".
- Focal_length label "Focal length".
- Focal_length label "Focale".
- Focal_length label "Lunghezza focale".
- Focal_length label "Ogniskowa".
- Focal_length label "Главное фокусное расстояние".
- Focal_length label "بعد بؤري".
- Focal_length label "焦点距離".
- Focal_length label "焦距".
- Focal_length sameAs Ohnisková_vzdálenost.
- Focal_length sameAs Brennweite.
- Focal_length sameAs Distancia_focal.
- Focal_length sameAs Focale.
- Focal_length sameAs Jarak_fokus.
- Focal_length sameAs Lunghezza_focale.
- Focal_length sameAs 焦点距離.
- Focal_length sameAs 초점거리.
- Focal_length sameAs Brandpuntsafstand.
- Focal_length sameAs Ogniskowa.
- Focal_length sameAs Distância_focal.
- Focal_length sameAs m.0l43r.
- Focal_length sameAs Q193540.
- Focal_length sameAs Q193540.
- Focal_length wasDerivedFrom Focal_length?oldid=606201299.
- Focal_length depiction Focal-length.svg.
- Focal_length isPrimaryTopicOf Focal_length.