The versatile zoom includes super wide angle to classic reportage focal lengths. The lens impresses with its low vignetting and a consistently high resolution up to the corners of the picture as well as a pleasant bokeh. Quick switching between AF/MF and precise manual focusing is possible at any time thanks to the focus clutch function. The robust, dust-proof and splash-proof construction withstands tough use even under severe conditions up to 10 degrees below zero. The filter size is 77 mm.