Friday, September 2, 2011

the camera

lens- a lens focuses the image in a camera  

wide angle- employing, or made with, a wide-angle lens





sheet film- flat piece of film cut to a required size before being loaded into a camera

darkroom- darkened place for developing photographs


aperture-opening

shutter-  device for opening and closing a camera lens             

exposure-the action of exposing film to the light


depth of field-the range of distances along the axis of an optical instrument


F-stop- the setting of an adjustable lens aperture, as indicated by an f number

focal length-the distance between an object lens and its corresponding focal plane in a telescope


 























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