The Collaborative International Dictionary
macro lens
macro lens \macro lens\ n. a camera lens designed to focus at short distances so as to achieve photographic magnifications of objects larger than with standard lenses.
Wiktionary
macro lens
n. (context photography English) A lens that allows a camera to focus at very close range to photograph small objects.
Usage examples of "macro lens".
A macro lens and a telephoto, her flash unit-all of which made her wince again as they banged against the tabletop.