Continuous Mode

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It allows photographers to take multiple pictures with the minimal lapse of time between shots. Photographers can sometimes shoot up to 40 frames/second by…

Contrast

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The difference between the darkest and lightest areas in a photo. The greater the difference, the higher the contrast.

Dark Frame

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A noise reduction process whereby a camera takes a second exposure of a black frame after the camera takes a long exposure (1/2-second or…

Dedicated Flash

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Describes an electronic flash that is made to be used only with a specific model of camera. Canon, Nikon, Olympus and other cameras have…

Densitometer

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A tool used to measure the amount of light that is reflected or transmitted by an object.

Depth of Field

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The depth of field (DOF) The range of sharp focus. Controlled by the focal length and aperture opening of the lens. A large aperture…

Diaphragm

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Lens opening. A perforated plate or adjustable opening mounted behind or between the elements of a lens used to control the amount of light…

Digital Camera

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A camera that captures the photo, not on film, but in an electronic imaging sensor that takes the place of film.

Digital Viewfinder

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An LCD display built into a camera that gives a digital view of where the camera is pointing. It’s used to compose and focus…

Digital Zoom

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A digital magnification of the center 50% of an image. Digital zooms by nature generate less than sharp images because the new “zoomed” image…

Diopter Adjustment

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Adjusts the optical viewfinder’s magnification factor to suit the eyesight of the user. Look for a knob or dial next to or beneath the…

Dithering

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A method for simulating many colors or shades of gray with only a few. A limited number of same-colored pixels located close together is…