The M.Zuiko Digital ED 300mm F4 IS PRO lens is a precision instrument that delivers pristine optical rendering across the entire image - all packed in a compact metal body. The fast 4 aperture gives you full control of outstanding image quality together with the world's fastest 5-Axis Sync IS, which works with compatible OM-D cameras. At a weight of just 1270g, this lens is up to 75% lighter than competitors' SLR lenses.