110 single �slide single lens element. See simple lens. single-lens reflex (SLR). A film or digital camera in which a system of mirrors shows the user the image precisely as the lens renders it. camera flash (important for wedding photographers). Slave flashes can also be triggered using radio signals. See also radio transmitter/receiver. Also called a slave unit. slave unit. See slave flash. sleep mode. A setting that allows a computer (or other device) to power down when it is not used for a specified amount of time. Waking from sleep mode is quicker than restarting the device. slide. A positive photographic transparency mounted for projection. See also transparency. slide copy attachment. See slide duplicator. slide duplicator. A device that fits onto the end of a camera lens and simplifies the process of duplicating slide film. A more comSLIDE. plex version of the same consists of an enlarger-like stand with an integral lens and lighting system. Also called a slide copy attachment. slide film. Film used in making slides. Also known as transparency film, positive film, or reversal film. slide holder. A metal or plastic device used to support a slide for scanning.LEFTIGITAL SLR. PHOTO COURTESY OF CANON. RIGHTILM SLR. PHOTO COURTESY OF NIKON.single servo autofocus. A system is which focus remains locked as long as the shutter release button is lightly pressed. single shooting mode. A camera setting that produces one image each time the shutter button is pressed. Contrast with burst mode. singlet. (1) Simple lens consisting of a single glass element. (2) Single glass element in a multiple-element lens. single-use camera. See disposable camera. SINGLE SHOOTING MODE ICON FOUND ON MANY single-weight paper. A type of phoCAMERAS. tographic paper with a relatively thin base. Contrast with double-weight paper. siphon. A device used to transfer liquid from one vessel to another without disturbing any sediments. Siskind, Aaron. See appendix 1. sit. To pose for a portrait. sixth plate. A negative or print format measuring approximately 2.5x3.25 inches. It is one-sixth the size of the full plate (8x6 inches) introduced by Daguerre. sizing. A very dilute, gluey substance used to prepare surfaces for coating by filling in pores and giving even absorbancy. skew. To slant a selected item in any direction. Used in graphics applications and desktop publishing. skin. A protective rubber or plastic housing designed to fit tightly over an electronic device while providing full access to controls. sky filter. A graduated filter designed to darken the sky while leaving the foreground exposure unaltered. skylight. Light coming from the sky rather than directly from the sun. skylight filter. A filter that absorbs ultraviolet radiation and is usually tinted light pink or yellow to neutralize the blueness inherent in skylight. sky shade. An alternative term for a lens shade. slave eye. A sensor used to trigger a slave flash unit. slave flash. Self-contained electronic flash unit that responds to external triggers. Optical slaves are triggered by the light from another flash unit. Digital slaves are triggered by pulses of white light or infrared energy that are encoded with digital messages. This prevents them from accidentally being triggered by anotherA SLIDE/NEGATIVE HOLDER DESIGNED TO BE PLACED ON A FLATBED SCANNER.slide mount. A plastic, glass, or cardboard frame used to support an individual slide or transparency and prevent warping. slide page. Archival polyethylene sheet with pockets used to provide safe, long-term storage for slides. slide projector. A device used to display enlarged slides on a screen. slide scanner. A scanner designed to digitize 35mm slides. slide show. A collection of individual photographs, usually grouped thematically, that are displayed sequentially on a computer monitor, proSLIDE SCANNER. PHOTO COURTESY OF jection screen, or televiHEWLETT-PACKARD. sion screen. slide viewer. A handheld device that backlights (and often slightly magnifies) a slide or negative for easier viewing.
