Canon EF 35mm f2 IS USM is a nice and light weight prime lens. It has pretty good autofocus and image stabilization performance. The main weakness of this lens is that the same price competitor, Sigma 35mm f1.4 ART, is so strong. Also the Canon EF 35mm f1.4 L II is almost a perfect lens for this focal length, so the 35mm f2 IS is rarely be mentioned. The sunstar is not very good but still fine, and the lens flare is well suppressed.