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Glossary of Photographic Terms
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The light already existing either indoors or outdoors that is not caused by any illumination supplied by the photographer.
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The area of a scene the the lens covers or can see. A wide angle (short focal length) lens has a greater angle of view than a telephoto Long focal length) lens.
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The opening in the lens through which light passes. The aperture opening can be adjustable or fixed. The Aperture is usually described in f-stops where the smaller the f-stop number, the larger the aperture opening.
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An exposure mode on automatic cameras that lets you set the aperture and the camera sets the shutter speed for a correct exposure.
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A system by which the camera lens automatically focuses the image of a selected part of the scene.
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A camera with a built in exposure meter that automatically sets the aperture, shutter speed ISO or all three for a correct exposure.
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