English
Detailed Translations for focal ratio from English to French
focal ratio:
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the focal ratio (aperture; f-number; aperture value)
– In photography, the diameter of the aperture expressed in terms of the focal length of the camera lens. The greater the f-number, the less light reaches the film and the more in focus the objects in the foreground and the background will be. For example, with an f-number = 16 the objects in the far background will be in focus. Whereas, with an f-number = 2 the background will be blurry (while foreground objects are in focus). 1
Translation Matrix for focal ratio:
| Noun | Related Translations | Other Translations |
| ouverture | aperture; aperture value; f-number; focal ratio | aperture; beginning; breach; commencement; dilatation; disclosure; hole; leak; leakage; opening; opening up; outset; overture; punch-mark; puncture; push open; start; unlocking |
| - | f number; speed; stop number | |
| Not Specified | Related Translations | Other Translations |
| f : chiffre | aperture; aperture value; f-number; focal ratio | |
| valeur d'ouverture | aperture; aperture value; f-number; focal ratio |