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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.
One of the greatest challenges for macro photographers is achieving sharp focus for all of the scene's important elements. In this image the wings of only one of this pair of caper whites are in focus. The defining characteristic of macro photography is of course that subjects are shot at close distances. While this close camera-to-subject proximity can lead to visually arresting images captured from an intimate perspective, this sort of photography presents unique technical challenges as well. In this article I'll address one of the most significant of these challenges - controlling depth of field (DOF).