The Leica Summicron-M 35mm F/2 is an outstanding new classic prime lens offering exceptional image performance and unique bokeh. Despite its high speed and impressive imaging quality, its dimensions are astoundingly compact. Together with this lens, every Leica M becomes an extremely compact and elegant photographic tool. The Summicron-M features a rectangular, full-metal lens hood with a screw mount. A screw-in protector ring is provided to protect the filter thread of the lens when the hood is not in use.