Glossary
ApertureThe opening of the camera through which light passes. Its setting is measured in f-stops and determines the size of the opening. The size of the opening, depending on the focal length of the lens, impacts the area of focus and the amount of light passing through the camera. The higher the f-stop setting (for example, f/16, f/22), the narrower the opening, resulting in less light and more of the image appearing in focus. The lower the f-stop setting (for example, f/1.4, f/2.8), the wider the opening, resulting in more light and a narrower area of focus, blurring more of the image.
BacklightIllumination of a subject from behind. Backlighting helps separate the subject from its background, often producing a halo-like glow around ...
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