Olympus M.Zuiko Digital ED 300mm f4.0 PRO Lens (Black) World's most powerful 6-steps of compensation synchronized in-lens and in-body Image Stabilization Closest focus of 1.4 meters gives a 0.48X (35mm equivalent) telemacro photography, Focal Length : 300mm Splash, Dust, and Freeze proof design Manual focus clutch & Lfn button to instantly switch shooting styles Compatible with the MC-14 tele-converter