1. Aperture - In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane
2. Shutter - a mechanical device on a camera that opens and closes to control the time of a photographic exposure
3. Exposure - photograph: a representation of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material
4. F-stop - One f-stop is a doubling or halving of the light going through the lens to the film, by adjusting the aperture riing. Adjusting the f-setting from f 1.4 to f.2.0 is halving the light that goes through the lens.
5. Single lens reflex - A single-lens reflex (SLR) camera is a camera that uses a semi-automatic moving mirror system which permits the photographer to sometimes see exactly what will be captured by the film or digital imaging system, as opposed to pre-SLR cameras where the view through the viewfinder could be ...
6. Negative - a piece of photographic film showing an image with light and shade or colors reversed
7. Positive - a film showing a photographic image whose tones correspond to those of the original subject
8. Contact sheet - A contact print is a photographic image produced from a film, usually a negative, occasionally from a film positive.
9. Agitation - the act of agitating something; causing it to move around (usually vigorously)
10. Enlarger - photographic equipment consisting of an optical projector used to enlarge a photograph
11. Stop bath - an acid bath used to stop the action of a developer
12. Fixer - fixing agent: a chemical compound that sets or fixes something (as a dye or a photographic image) 13. Safe light - Safelight is a light source suitable for use in a photographic darkroom. It provides illumination without the wavelengths of the light spectrum to which the material in use is sensitive. A safelight usually consists of an ordinary lightbulb in a housing with a coloured filter. ...
14. Burning - combustion: a process in which a substance reacts with oxygen to give heat and light
15. Dodging. - avoidance: deliberately avoiding; keeping away from or preventing from happening
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