Wednesday, September 12, 2012

the Camera

Single-lens reflex - a camera that a photographer uses to see the scene  through the camera lens

Rangefinder camera- as camera and lens technology delveloped and wide aperture lenses became more common

Box camera- box cameras were introduced as a budget level camera and had a few if any controls

Folding camera - The introduction of films enabled the existing designs for plate cameras to be made much smaller and for the base-plate to be hinged so that it could be folded up compressing the bellows 

Aperture-  a hole or an opening through which light travels

Shutter- Although a range of different shutter devices have been used during the development of the camera only two types have been widely used and remain in use today.

Exposure- The size of the aperture and the brightness of the scene controls the amount of light that enters the camera during a period of time, and the shutter controls the length of time that the light hits the recording surface.

Depth of field- the distance between the nearest and farthest objects in a scene that appear sharp in a image

Focal length- a measure of how strong the system converges or diverges light




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