The Canon 20x Zoom Lens 5.4-108mm L IS delivers the highest optical performance with advanced features like built in shutter for stills, enlarged Electronic Viewfinder (EVF) and flange back adjustment. It is equipped with twelve optical high-refraction glass elements that are organized in ten groups. It also comes with two Fluorite aspherical lens elements. Enabled with SR coating, it greatly reduces ghosting and flare, while providing consistent sharp image. The two built-in neutral density (ND) filters helps in reducing the light by 1/6 or 1/32, so that the iris is fully opened even in strong light conditions. Moreover, this lens offers 16 zoom speeds and AutoFocus selection.