Photography can be referred to as a process of creating still or moving images through the methods of capturing live data by observing radiation and storing it on a sensitive medium, such as electromagnetic film or electronic sensors.
The emitted light patterns are captured on photographic film and activate a chemical or electrical sensor in the storage material. This is usually done through a camera lens that is very sensitive.
functions of a camera
The camera is the imaging device. Electronic image sensors or photographic film is the recording medium. Digital cameras that have an electronic medium as a storage medium are also available today.
The basic principle of the camera is that it controls the amount of light and the exposure time of the camera to the outside world through the use of a lens. When there is enough light, we can form an image on film. This raw image can then be developed to obtain an original image in real time.
Movie camera is another type of camera where the entire movements are captured and not just the still image. The basic idea behind the movie camera is that data is captured in a sequence of photos with no delay between them. This forms a moving frame that is often captured by voice.
controls of a camera
To make sure that we get a sharp and clear photo, we have to make sure that we adjust the camera manually or automatically. Below are some of the controls and their descriptions.
Focus
Focus is the adjustment that is made to bring the desired area or desired part to the sharpest possible point. This is usually done manually, but is also done automatically on some newer digital cameras.
opening
The aperture can be referred to as the iris settings. It is also known as the f number. This number generally controls the amount of light that will pass through the lens. Aperture is also known to have some effect on focus and depth of field.
shutter speed
The controls over how fast the shutter closes and opens are called shutter speed. This is usually in millisecond speeds. This is the time during which the imaging medium and light are exposed to the storage medium.
white balance
White balance is a special feature of digital cameras used to ensure that white light is captured as it was in the actual medium so that colors found in the image area appear natural.
extent
Metering is the measurement of light exposure amounts. This is done manually so that bright light areas and shadow regions are captured according to the photographer’s desire.
auto focus point
The autofocus point is an additional feature used in many of the new digital cameras to ensure that focusing is done in a way that meets the photographer’s desire. Several autofocus points are also available in the viewfinder today.