A versatile one-lens solution for many shooting situations, the EF 24-105mm f/4L IS USM Lens is a Canon L-series zoom spanning a useful wide-angle to short-telephoto range and featuring a constant f/4 maximum aperture. Complementing the flexible design is an advanced optical layout that includes one Super UD element, which reduces color fringing and chromatic aberrations in order to realize a high degree of color accuracy and clarity.