Camera:
Introduction:
Camera is an instrument used to take, or record, pictures of people and objects. Some cameras record single, still pictures called photographs. Movie cameras and video cameras record moving pictures. These are called movies, films, or videos.
The word camera comes from the Latin words camera obscura, which mean “dark chamber.” This is because the earliest experiments with capturing images took place in a darkened chamber, or room.
How cameras works?
Understanding the simple mechanics of how cameras work will help you get the best possible results out of yours.
But before you head out to start taking photos, you need to understand the six essential elements involved in recording an image.
Understanding these requirements, regardless of whether you’re shooting on a DSLR, compact camera or iPhone, will make your photography so much better. These requirements are:
- Light: Light is an essential part of any image, and it comes in many different types. How we use this light is important.
- Subject: The subject of an image is the person, object or scene being photographed. The composition of an image should leave the viewer in no doubt about the subject.
- Optics: This refers to lenses, which are used to focus the light and capture an image.
- Aperture: Aperture controls the amount of light that reaches the recording medium in your camera. It also controls the depth of field (the range of sharpness range either side of the point of focus).
- Time: Time relates to the shutter speed and how long the recording medium is exposed to light.
- Medium: The recording medium is what records the image. This used to be film, but is now usually a CMOS or CCD chip.
