A standard wide-angle lens featuring compact size and light weight. This lens is suitable for casual snap shot, landscape and architectural photography. A molded glass (GMo) aspherical lens element (1st) achieves compact, lightweight optical system with high performance. The small number of elements ensures sharp, high-contrast image quality and super-fast AF. Distortion is virtually nonexistent, making the lens ideal for architectural photography and scenes containing straight lines. Mechanical manual focusing.