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Macro Photography, also known as close-up photography, is the photography of small objects. A macro lens is a lens that offers a magnification of either 1:1, (1x) or sometimes only 1:2 reproduction.
Wiktionary (0.00 / 0 votes) Rate this definition: macro (Noun). A comparatively human-friendly abbreviation of complicated input to a computer program. The pre-processor expands any embedded macros into source code before it is compiled.