Sigma 2x EX DG Tele Converter

Sigma's dedicated 2x APO teleconverter can be mounted between select lenses and the camera body to increase the focal length by the power of 2.0x. The new multi layer coating reduces flare and ghosting, which is a common problem with digital cameras. They demonstrate best performance with DG series lenses. It also offers maximum photography magnification by 2.0x, without any variation in the minimum focusing distance. Compact and lightweight, this teleconverters convert your lenses into longer focal-length lenses, so you don't have to do a lot of unnecessary footwork.