The Opteka Auto Focus Lens Adapter for Olympus EVOLT DSLR 4/3 Lenses to Olympus PEN Micro 4/3 Mirrorless Cameras enables you to use your Olumpus EVOLT DSLR lenses with the PEN mirrorless digital camera system, which has a micro four-thirds lens mount. It is fully compatible with all lens functions, including image stabilization, electronic aperture control, and autofocus. And, included with the adapter are front and rear caps for storage.