Digital and video microscopes are instruments that use digital technology to magnify images of objects. They include built-in cameras and a series of high-powered lenses that provide superior image quality and resolution. Some digital and video microscopes require users to view objects through a standard eyepiece. Others provide a computer interface that displays images on a monitor. Image analysis processing software allows adjustments to both linear dimensions and resolution. Total magnification, the ratio of the image size to the actual object, is usually determined by linear measurement. This specification represents the device’s entire magnification range, including both eyepiece magnification and objective magnification.