It qualifies as shutter to what allows shutter . East verb (shutter), meanwhile, refers to block or plug a channel or hole through the application or the introduction of some element.
In the field of Photography , the shutter is called device of mechanical operation that, in a camera, is responsible for control how long a film or sensor is exposed to light .
He single blade shutter , for example, consists of metal sheets that prevent the light Enter through the objective and reach the movie. When taking a photo, the shutter opens by moving the sheets.
He focal plane shutter , meanwhile, has mobile curtains, while the central shutter dispose of sheets of radial opening.
The shutter speed is the weather in which the shutter remains open. Expressed in seconds and fractions, it allows the control of the light that comes into contact with the photosensitive element.
In a general sense, it can be said that when the shutter opens for a very short time, a small amount of light reaches the film or the sensor and reduces or freezes the movement . However, if the shutter is open for a long time, more light passes and moving images are captured.
When the shutter remains open for a prolonged period, and therefore, there is an extensive exposure time, it is best to use a tripod To take the picture Otherwise, the pulse vibration tends to cause the photo to lose sharpness due to tremor.