However, such numbers don’t always tell the entire story, especially when looking at zoom lenses on a digital camera. Manufacturers measure zoom capabilities of digital cameras in two configurations: optical zoom or digital zoom. It’s important to understand the zoom lens because the two types of zooms are vastly different from each other. In the battle of optical zoom vs. digital zoom, only one — optical zoom — is consistently useful for photographers.
With most digital cameras, the zoom lens moves outward when in use, extending from the camera body. Some digital cameras, however, create the zoom while adjusting the image size within the camera body.
Continue reading to find more information that can help you understand camera zoom lenses better.