What is a microfocus lens?

Macro lens is a special lens for macro photography, which is mainly used to shoot very fine objects, such as flowers and insects. In order to focus on the object correctly at a very close distance, the macro lens is usually designed to be longer so that the optical center is as far away from the photosensitive element as possible. At the same time, in the design of lens group, we should also pay attention to the control of close-range deformation and color difference. Most macro lenses have a longer focal length than standard lenses and can be classified as telescope heads. However, the optical design may not be as good as the ordinary telescope head, and it is not completely suitable for general photography.