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  Camera

Introduction to Camera

Camera is a device that is used to capture images (generally photographs), either singly or in sequence, with or with no sound, success along with video cameras. The term camera is derived from camera obscure, Latin for "dark chamber".

Each camera contains some type of enclosed chamber, along with an opening or aperture at one end for light to enter, and viewing or cording surface for capturing the light at the another end. This aperture is frequently controlled through an iris mechanism.

When the aperture manages the amount of light which enters the camera during photographing, the shutter manages the length of time which the light hits the film. For instance, in lower light situations the shutter speed have to be slower to permit for capture what little light is available.

There are several techniques of focusing a camera correctly. The very most simple cameras contain fixed focus and make use of a small aperture and wide - angle lens to make sure that all the thing within a specific range (generally around 3 meters). This is generally the type found on one-use cameras and other cheap cameras. The camera can as well contain a limited focusing range or scale-focus which is pointed out on the camera body. The user will presume the distance to the subject and adjust focus as per the requirement. On a number of cameras this is pointed out through symbols.

Range finder cameras focus through means of a coupled parallax unit on top of the camera. Single - lens reflex cameras by using the efficient lens and a moving mirror to project the image onto a ground glass. Twin - lens reflex cameras make use of an objective lens a focusing lens unit in a parallel body to focus.

Extra cameras catch light onto photographic film or photographic plate. Video and digital cameras make use of electronics a charge coupled device (CCD) to catch images that can be transferred or stored in tape or computer memory code the camera for afterwards playback or processing. Which capture several images in sequence is termed as movie cameras. Though the categories overlap, as still cameras are frequently employed to capture moving images in special effect and modern digital cameras are frequently capable to trivially switch among still and motion recording modes, which take 3-D photographs are termed as stereo cameras. Stereo cameras for creating 3D prints or slides contain two lenses side by side. Stereo cameras for creating lenticular prints have 3, 4, 5 or even several lenses.

The film cameras feature data imprinting devices which can print a date on the negative itself. Camera brands are as follows

i. Canon

ii. Konica

iii. Leica

iv. Olympus

v. Nikon

vi. Minolta

vii. Pentax

viii. Sony

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