These are word's examples related to optical-zoom. Click on any word to go to its word's detail page. Or, go to the definition of optical-zoom.
The camera’s 18x optical zoom is among the industry’s longest zooms.
Using a high-resolution camcorder and its optical zoom lens, a colleague snapped eight close-up photos of my eye.
If you want more magnification than the optical zoom can handle, it's better to achieve it on a computer after the fact.