Glossary entry (derived from question below)
English term or phrase:
focal length
Portuguese translation:
distância focal
English term
focal length
• 3.2 megapixels camera with 20x digital zoom, CMOS sensor, Tessar® Carl Zeiss Optics and LED flash.
• Take picture with resolution up to 2048 x 1536 pixels.
• Focal length: 5.6 mm.
• Focus range: 10 cm – infinity.
5 +5 | distância focal |
Fabio Said
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Proposed translations
distância focal
A distância focal, medida em milímetros, é a distância entre o centro ótico da lente e a película fotográfica (ou o CCD nas digitais), situada no interior do corpo da câmera. É através dela que classificamos as lentes. É ela que define todas as características próprias de cada objetiva e o resultado estético da imagem produzida por cada uma.
(http://www.herbario.com.br/fotoweb/curso_fotografico/c61.htm...
Focal length
The distance between the film plane and the focal point (optical centre of the lens) when the lens is focused at infinity. The focal length of the lens is marked in millimetres on the lens mount. The principal focal point is the position of best focus for infinity. There are two principal focal points, if a lens is turned around a second focus is obtained. 'Reversed' lenses are often used in close-up Macrophotography because using a lens reversed allows a closer focusing distance.
(http://www.peterashbyhayter.co.uk/glossaryF.html)
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