Battery Grip D-BG5 Pentax K3
Battery GripD-BG5 Exclusively designed for the PENTAX K-3 Accepts six AA-size batteries Accepts standard lithium-ion rechargeable battery Provides an additional shutter-release, AE-lock, AF, ISO, exposure-compensation and green buttons, as well as a preview lever and dual electronic dials to facilitate vertical-position shooting. Dustproof, weather-resistant construction