Photography can be referred to as a process of creating still or spicy pictures by the methods of capturing the live data by observing the radiations and storing it on a sensitive medium such as electromagnetic film or electronic sensors.
The light patterns emitted are obtained in a photographic film originate a chemical or electrical sensor in the storing material. This is regularly done straight through a camera lens which is extremely sensitive.
Camera
Functions of a camera
The camera is the image forming device. The electronic image sensors or a photographic film is the recording medium. Nowadays digital cameras are also available which have electronic medium as the storing medium.
The basic principle of the camera is that, it controls the number of light and time of the exposure of the camera to the outer world by using a lens. When there is enough light, then we can form an image on a film. This raw image can then be industrialized to secure a real time original image.
Movie camera is other type of camera in which the total movements are captured and not only the still. The basic idea behind the movie camera is that the data are captured in a sequence of photographs with no delay in in the middle of them. This forms a spicy frame which is often captured with the voice.
Controls of a camera
To ensure that we secure a sharp and clear photograph, we have to make sure that we adjust the camera whether manually or automatically. Below are some of the controls and its descriptions.
Focus
Focus is the adjustment that is made to bring the desired area or the desired part to the sharpest point possible. This is regularly done manually, but this is also done automatically in some newest digital cameras.
Aperture
Aperture can be referred to as the adjustments of the iris. It is also known as the f number. This number regularly controls the number of light that will pass straight through the lens. The aperture has also known to have some follow on the focus and the depth of the field.
Shutter speed
The controls over the speed of the shutter with which it closes and opens are called as shutter speed. This is regularly in the speeds of milliseconds. This is the time of which the imaging medium and the light are exposed to the storing medium.
White balance
The white equilibrium is a extra feature in the digital cameras that is used to ensure that the white light is captured as it was in the real medium so that the colors that are in the imaging area appear naturally.
Metering
Metering is the determination of the amounts of the exposure of the light. This is done manually so that the spicy light areas and the shadow regions are captured agreeing to the photographer's wish.
Auto-focus point
Auto-focus point is an further feature that is employed in many of the new digital cameras to ensure that the focus is done so that it satisfies the photographer's wish. Nowadays multiple auto focus points in the view finder are also available.
Basic Functions of a Digital Camera
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