1. Computing

Optical Zoom

By

Definition: Optical zoom is the magnification of a digital image using physical changes in the focal length of the zoom lens to magnify the image.

Optical zoom is the preferred method of magnifying an image for digital photographers because it doesn't negatively affect image quality, as does digital zoom. In fact I'd recommend basically ignoring the digital zoom measurement of a camera and focusing only on the optical zoom measurement.

  1. About.com
  2. Computing
  3. Digital Cameras
  4. Digital Cameras 101
  5. Digital Camera Glossary
  6. Digital Camera Glossary: Optical Zoom

©2014 About.com. All rights reserved.