The adjustable opening in a camera lens used to control the amount of light reaching the film. The size of this hole is called the f-stop.

Illustrated AlphabetAnna Glenn

Aperture

The adjustable opening in a camera lens used to control the amount of light reaching the film. The size of this hole is called the f-stop.

Brush tool

The Brush tool allows you to select a brush, choose its characteristics, including size, shape, spacing, roundness, hardness, angle, diameter, mode, opacity, and more, and then use the brush for various types of artwork

Crop

To enlarge an image so that parts are cut or left off the print.

Dodge Tool

Used to darken areas of an image or print. The Dodge tool’s name comes from the traditional photographer’s method of reducing the amount of light made available when exposing the film to get the picture.

Eyedropper Tool

Like the Color Sampler tool, this allows you to match a color exactly by clicking on an area of the image and then offers information about that color.

Free Transform

Allows you to stretch, shrink, and rotate images

Gradient Tool

Fills a closed object with a range of colors that fade into each other.

Healing Brush Tool

The Healing Brush let you correct imperfections in images such as dirt, smudges, and even dark circles under a subject’s eyes. You can match the background texture, lighting, and shadows or shading to “cover up” these flaws.

Image

Two-dimensional reproduction of a scene

JPEG

An acronym for Joint Photographic Experts Group that describes an image file format standard in which the size of the file is reduced by compressing it. A "JPEG" image file name carries the extension "jpg" - e.g. "portrait.jpg"

K

Represents the color black

K

Lens

One or more pieces of optical glass or similar material designed to collect and focus rays of light to form a sharp image on the film, paper, or projection screen.

Macro Lens

A lens that provides continuous focusing from infinity to extreme close-ups, often to a reproduction ratio of 1:2 (half life-size) or 1:1 (life-size).

Negative

The developed film that contains a reversed tone image of the original scene.

Overexposure

A condition in which too much light reaches the film, producing a dense negative or a very light print or slide.

Paint Bucket Tool

The Paint Bucket tool fills a closed object with a solid color.

Quick Selection Tool

Allows you to quickly select an area of an image.

Rangefinder

A device included on many cameras as an aid in focusing.

Saturation

An attribute of perceived color, or the percentage of hue in a color. Saturated colors are called vivid, strong, or deep. Desaturated colors are called dull, weak, or washed out.

Tone

The degree of lightness or darkness in any given area of a print; also referred to as value. Cold tones (bluish) and warm tones (reddish) refer to the color of the image in both black-and-white and color photographs.

Underexposure

A condition in which too little light reaches the film, producing a thin negative, a dark slide, or a muddy-looking print.

Viewfinder

A viewing device on a camera to show the subject area that will be recorded on the film. Also known as viewfinder and projected frame.

Wide Angle Lens

A lens that has a shorter focal length and a wider field of view (includes more subject area) than a normal lens. Also can explained as a lens whose focal length is shorter than the diagonal of the film frame; in 35mm photography, lenses shorter than 50mm; also referred to as a "short" lens.

Xtra Normal

Animation web site

http://www.xtranormal.com/

Zoom (lens)

A lens in which you adjust the focal length over a wide range. In effect, this gives you lenses of many focal lengths.