The Vertical Battery Grip VG-XT3 is designed to be dust-resistant, water-resistant and capable of operating at temperatures as low as -10°C/14° F, and holds two additional batteries to increase the maximum number of shots to 1,100 (in normal mode). The grip features a shutter release button, focus lever, AE-L button, AF-L button, front and rear command dials, Q button and Fn button to provide the same level of excellent operability with vertical shooting as with horizontal.