INTEGRATED GAS SPACER CABLE: TYPE IGS. Definition. Type IGS cable is a factory assembly of one or more conductors, each individually insulated and enclosed in a loose-fit nonmetallic flexible conduit.. The cable is for underground useâincluding direct earth burialâfor service conductors, feeders, or branch circuits. It must not, however, be used as interior wiring or exposed in contact with any building. Sizes available for this product run are metric designators 53, 78, and 103 (trade sizes 2, 3, and 4).
A mode dial showing shutter priority mode, aperture priority mode, Program mode, Manual mode, and scene modes. Shutter priority refers to a setting on some cameras that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure. This is different from manual mode, where the user must decide both values, aperture priority where the user picks an aperture with the camera selecting the shutter speed to match, or program mode where the camera selects both.
In photography, shutter speed or exposure time is the length of time when the film or digital sensor inside the camera is exposed to light, also when a camera 's shutter is open when taking a photograph. The amount of light that reaches the film or image sensor is proportional to the exposure time.n addition to its effect on exposure, the shutter speed changes the way movement appears in photographs. Very short shutter speeds can be used to freeze fast-moving subjects, for example at sporting events. Very long shutter speeds are used to intentionally blur a moving subject for effect.