With excellent optical performance packed in a compact lightweight dustproof splashproof and freezeproof construction this M.Zuiko PRO 300mm f/4.0 PRO ED Super-Telephoto Lens lets you shoot outstanding-quality images even in the harshest environments. This is the first Olympus interchangeable lens to be equipped with in-lens image stabilization. 5-axis Sync IS a collaboration of in-lens IS and in-body 5-axis IS achieves the worlds most powerful image stabilization equivalent to 6 shutter speed steps. With excellent mobility these features make previously difficult hand-held super-telephoto shooting possible. When combined with the MC-14 1.4x Teleconverter (sold separately) the lens can be used as an 840mm super-telephoto lens.