Operation Manual

digital A description of data that is stored or transmitted as a sequence of ones and zeros.

Most commonly, refers to binary data represented using electronic or electromagnetic

signals. JPEG, PNG, RAW, and TIFF files are all digital. See also digitization.

digital image sensor The computer chip located at the image plane inside the camera

that consists of millions of individual light-sensitive elements capable of capturing light.

See also camera, charge-coupled device (CCD), complementary metal oxide semiconductor

(CMOS), megapixel.

digital master file See master.

digital noise Misinterpreted pixels occurring as the result of high ISO settings; also known

as chrominance signal-to-noise ratio. Random bright pixels, especially in solid colors, are

the result of digital noise. See also ISO speed, noise reduction.

digital point-and-shoot camera A lightweight digital camera with a built-in autofocus

feature, aptly named for the two steps required of the photographer to capture an image.

The lens, aperture, and shutter are one assembly that is usually irremovable from the

camera. See also camera, digital single-lens reflex (DSLR) camera.

digital single-lens reflex (DSLR) camera An interchangeable-lens camera where the

image created by the lens is transmitted via a reflexing mirror through a prism to the

viewfinder, and the viewfinder image corresponds to the actual image area. The mirror

reflexes, or moves up, so as not to block the digital image sensor when the shutter is

open. See also camera, digital point-and-shoot camera.

digitization The process of converting an analog voltage value to a digital value.

digitize A term often used by photographers for converting images captured on film to

a digital format, such as TIFF, using a film scanner.

disclosure triangle A small triangle you click to show or hide details in the Aperture

interface.

display The computer’s monitor.

distort Performing an adjustment that changes the shape or composition of an image.