Pentax 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses by Ricoh
The 1.4x HD PENTAX-DA AF Rear Converter AW from Ricoh is compatible with Pentax KAF2 mount lenses on select DSLR cameras. It mounts between the camera body and lens, and increases the focal length of the lens by 1.4x, while reducing the aperture by 1 f/stop. The minimum focus distance of the lens is retained, as are auto focus and auto aperture functionality. With both the camera-driven AF system and the lens-driven AF system, the rear converter works flawlessly, including that of the SDM and DC-series lenses. Before using the autofocus function, the camera's firmware must be updated to the latest version.