With an optical formula of 7 elements in 7 groups, the Pentax SMC M 1:2 35mm lens gives you effective camera handling while zooming and focusing on the picture. Thanks to a maximum aperture of f/2, this Pentax lens gives you bright images even in low light conditions. The minimum aperture of f/22 of this Pentax camera lens delivers stunning still images of moving objects. The filter diameter of 49 mm protects the Pentax lens from dust, scratch and moisture. The 6 aperture blades of this Pentax camera lens provide you with a decent bokeh. Also, the Pentax SMC M 1:2 35mm lens comes with a clip-on hood to prevent unwanted stray light from entering the lens.