This fast standard zoom for full-frame cameras is designed for photographers and filmmakers alike. It offers very high image quality with beautiful bokeh, along with four fast and reliably controlled XD Linear Motors for autofocus. This second-generation G Master standard zoom lens impresses with its reduced size and weight, while gaining extra features compared to its predecessor. In addition to an aperture ring that can be set to stepless control, it has a zoom smoothness switch that allows the photographer to select between loose and tight, as the photographic situation requires. Two adjustable focus hold buttons provide convenient control.