The specialty of a macro lens is in allowing you much much closer to your subject than a normal optic would .. with the ease of continuous focusing from infinity to the closest distance. No need to screw in additional rings or lenses or reverse your lens. A macro lens works as a close-up lens, and as a more usual optic. And that's the versatility of it.
The main feature of the Canon 100 mm f/2.8 IS macro lens (B&H / Amazon) is that it offers stabilization. Now this might not seem such a big deal to photographers who work Read more inside...