In photography and digital photography
the shutter speed is the unit of measurement which determines how long
shutter remains open as the picture is taken. The
slower the shutter speed, the longer the exposure time. The shutter speed and
aperture together control the total amount of light
reaching the sensor. Shutter speeds are expressed in seconds or fractions of a
second. For example 2, 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500,
1/1000, 1/2000, 1/4000, 1/8000. Each speed increment halves the amount of light.
Digital Camera Technology Overview Outlines the technology underlying the digital camera and the features offered by a modern, consumer model. Includes graphics, diagrams and an integrated glossary. This page is from "The PC Technology Guide."
Webopedia's Quick Reference: The Digital Camera Picture If you can't keep up with advances in digital camera, you're not alone. We help you make sense of megapixels, zero in on the zooms (digital, optical and total) and delve into everything from price points to paper to printers.