Assume that no one reading this article owns a macro lens. Ask yourself: “What makes a macro-lens so special?”
A macro lens is the exact opposite of a conventional lens.
A macro lens magnifies a subject to the same size as your camera’s sensor.
A macro lens can focus on a very small subject to produce a 1:1 reproduction.
What can you do using a macro lens, then?
The answer to this question is macrophotography.
Macro lenses are responsible for all those close-ups of flowers and insects that you have seen.