This new wide-angle lens is fast, compact and delivers exceptional performance. Its outstanding speed makes it particularly versatile and delivers brilliant imaging results even in difficult lighting conditions. Its full-metal lens hood with a screw mount protects the optical system against undesirable stray light and flare. A screw-in protector ring is provided with the lens to protect the filter thread of the lens when the hood is not in use. The eleven blades of the iris of the new Summicron-M 35mm f/2 ASPH. create a circular aperture. This lends the out of focus areas of subjects a smooth and harmonious look. The newly designed and constructed lens delivers pin-sharp pictures with rich contrast and almost complete freedom from distortion – at all apertures and distances – and even when wide open.