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F-numbers
| Глоссарий по фотографии |
A series of numbers designating the apertures, or openings at which a lens is set. the higher the number, the narrower the aperture. for example, f/16 is narrower (by one stop) than f/11--it lets in half as much light. an f-number range might be f/2.8, f/4, f/5.6, f/8, f/11...to find the next aperture in a narrowing series, multiply by 1.4. f-numbers are arrived at by dividing the diameter of the opening into the focal length of the lens, thus a 10mm diameter opening on a 110mm lens is f/11. alternately used with f-stops.
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Panning, английский
- A shooting technique where the subject is followed during exposure; generally done with a slow shutter speed.
- The act of using a slow shutter speed, and moving the camera in the same direction as a moving subject, during the exposure to create a blurred background. see panning tips here.
- The process of washing drill sludge, earth, or crushed rock in a pan by agitation with water, which concentrates the mineral particles having the greatest specific gravity in the center of the pan. see pan.
- A multi-touch gesture that consists of one or two fingers moving in the same direction, parallel to each other.
- In computer graphics, a display method in which a viewing window on the screen scans horizontally or vertically, like a camera, to bring offscreen extensions of the current image smoothly into view.
Developing, английский
- A series of chemical and physical actions done in a commercial lab or the home darkroom that converts light-struck film to an image that can be viewed directly or printed; making prints from negatives.
- A stage in dyeing or printing in which leuco compounds, dyes, or dye intermediates are converted to the final, stable state or shade.
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