Shutter (photography)In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitivedigital sensor to light in order to capture a permanent image of a scene. A shutter can also be used to allow pulses of light to pass outwards, as seen in a movie projector or a signal lamp. A shutter of variable speed is used to control exposure time of the film.
Flash (photography)A flash is a device used in photography that produces a brief burst of light (lasting around 1⁄200 of a second) at a color temperature of about 5500 K to help illuminate a scene. The main purpose of a flash is to illuminate a dark scene. Other uses are capturing quickly moving objects or changing the quality of light. Flash refers either to the flash of light itself or to the electronic flash unit discharging the light.
CameraA camera is an instrument used to capture and store images and videos, either digitally via an electronic image sensor, or chemically via a light-sensitive material such as photographic film. As a pivotal technology in the fields of photography and videography, cameras have played a significant role in the progression of visual arts, media, entertainment, surveillance, and scientific research.
Image sensorAn image sensor or imager is a sensor used for imaging. It detects and conveys information used to form an image. It does so by converting the variable attenuation of light waves (as they pass through or reflect off objects) into signals, small bursts of current that convey the information. The waves can be light or other electromagnetic radiation.
Photographic filmPhotographic film is a strip or sheet of transparent film base coated on one side with a gelatinemulsion containing microscopically small light-sensitive silver halide crystals, for the purpose of taking photographs. The sizes and other characteristics of the crystals determine the sensitivity, contrast, and resolution of the film. Film is typically segmented in frames, which give rise to separate photographs.
PhotographyPhotography is the art, application, and practice of creating images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and mass communication.Fill flashFill flash is a photographic technique used to brighten deep shadow areas, typically outdoors on sunny days, though the technique is useful any time the background is significantly brighter than the subject of the photograph, particularly in backlit subjects. To use fill flash, the aperture and shutter speed are adjusted to correctly expose the background, and the flash is fired to lighten the foreground.
Digital cameraCamera that captures photographs or video in digital formatFront and back of a Canon PowerShot A95 (c.2004), a once typical pocket-sized compact camera, with mode dial, optical viewfinder, and articulating screenHasselblad 503CW with Ixpress V96C digital back, an example of a professional digital camera systemA digital camera, also called a digicam, is a camera that uses digital storage to capture images.
Electrical contactAn electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers. Each contact is a piece of electrically conductive material, typically metal. When a pair of contacts touch, they can pass an electrical current with a certain contact resistance, dependent on surface structure, surface chemistry and contact time; when the pair is separated by an insulating gap, then the pair does not pass a current.
Prontor-CompurA Prontor-Compur connection (also known as a PC connector, PC terminal, or PC socket) is a standard 3.5 mm (1⁄8 in) electrical connector (as defined in ISO 519) used in photography to synchronize the shutter to the flash.
Hot shoeA hot shoe is a mounting point on the top of a camera to attach a flash unit and other compatible accessories. It takes the form of an angled metal bracket surrounding a metal contact point which completes an electrical connection between camera and accessory for standard, brand-independent flash synchronization.
ClockworkClockwork is the inner workings of either clocks and watches (where it is also called the movement) or other mechanical devices that work similarly, using a series of gears driven by a spring or a weight. A clockwork mechanism is often powered by a clockwork motor, consisting of a mainspring, a spiral torsion spring of metal ribbon. Energy is stored in the mainspring manually by winding it up, turning a key attached to a ratchet which twists the mainspring tighter.*As an Amazon Associate I earn from qualifying purchases.