Sigma Power Grip PG-41

The Sigma Power Grip PG-41 is able to hold two BP-61 lithium-ion batteries in addition to the one already in the camera, improving shooting time by up to 300%. It gives users the option to shoot in a vertical position, offering vertically-positioned shutter release, on/off switch, command dials, AF/AEL button, and function button. Its design...View more