The versatile zoom ranges from super wide-angle to classic reportage focal lengths. The lens impresses with its low vignetting and consistently high resolution right into the corners of the image as well as a pleasant bokeh. Fast switching between AF/MF and precise manual focussing is possible at any time thanks to the Focus Clutch function. The robust, dust and splash-proof construction can withstand tough use even in harsh conditions down to 10 degrees below zero. The filter size is 77 mm.