The Leica Telephoto 90mm f/2.0 APO Summicron M Aspherical Manual Focus Lens is a fast, newly computed high-performance lens for portraiture and photojournalism. Also excellent for quick snapshots when you want to take pictures inconspicuously from a distance. Its high speed permits relatively fast shutter speeds that prevent blurred images caused by camera motion. With an aspherical lens surface and APO-corrected quality, this lens sets new standards in the category of short telephoto lenses. Built-in sliding lens hood.