PHOTOGRAPHY GLOSSARY "V-Z"

VGA. Refers to an image resolution size of 640 x 480 pixels.

Video Out. This means that the digital camera has the ability to output its images on television screens and computer monitors using either NTSC or PAL format.

Viewfinder. The eye level device you look through to compose the image.

Vignetting. The term that describes the darkening of the outer edges of the image area due to the use of a filter or add-on lens. Most noticeable when the zoom lens is in full wide-angle. It is also sometimes used as a special effect in the photo editing stage of development.

White Balance. Refers to the adjustment of the brightness of the red, green and blue components, so that the brightest object in the image appears white. See also "AWB"

Wide angle. The focal length that gives you the widest angle of view. I.e. 10mm, 16mm, 24mm etc.

xD-Picture Card. A new flash memory card standard that was co-developed by Fuji film and Olympus in mid 2002. Rumoured at the time, to be replacing SmartMedia which had stalled at 128MB. xD is scheduled to go as large as 8GB (at the time of writing), in a form the size of a postage stamp.

XGA. This refers to an image resolution size of 1024 x 768 pixels.

Zoom Lens . A variable focal length lens. The most common on digital cameras has a 3:1 ratio (i.e. 35-105mm). Detachable zoom lenses include for example, 24-70mm, 70-200mm and 100-400mm

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