Sigma 18-35mm f/1.8 Art Lens For Canon EF

No more will you have to worry about only being able to have a maximum aperture of f/2.8 in a zoom lens, the Sigma 18-35mm f/1.8 DC HSM Art Lens is the worlds first f/1.8 aperture zoom lens. Compared with a f/2.8 max aperture lens, you'll be able to shoot one stop faster, which can help reduce the effect of camera shake and the shallower depth of field will provide a magnificent bokeh (blur) effect in the background of your images.