A chart that offers a quick summary of the tonal range present in an image. Histograms graph the tones in your image from black (on the left) to white (on the right). The higher the graph, the more pi [..]

The level of your camera’s sensitivity to available light. The lower the ISO number, the less sensitive the camera is to the light, while a higher ISO number means an increased sensitivity.

A megapixel is equal to 1 million pixels. (A pixel is an individual element of a digital image.) The number of megapixels determines the resolution of an image — a digital image with more megapixels h [..]

The length of time a camera shutter is open to expose light into the camera sensor. Fast shutter speeds help to freeze action completely, while slow shutter speeds cause moving objects to appear blurr [..]

The camera setting that adjusts for lighting to make objects appear white in photographs.

An effect that causes image magnification to decrease with distance from the optical axis. The result is an image that appears to be mapped around a sphere or barrel.

The aesthetic quality of the blur produced in the out-of-focus parts of an image.

The distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image.

The distance in millimeters from the optical center of a lens to the imaging sensor when the lens is focused at infinity. The focal length relays both the angle of view and the magnification. The long [..]

A lens able to reproduce a life-sized image of an object on the recording medium.