Battery grips attach to the bottom of a camera body to extend shooting time and add a vertical shutter release: accessory grips that hold a second battery for roughly double the shots between charges, and add ergonomic controls for shooting in portrait orientation without twisting the wrist. For long shoots or events where swapping batteries mid-session is not an option, a grip is what keeps a camera running.
Grips are camera-model-specific - order by the exact body, since mounting points, electrical contacts, and control layout are matched to a particular camera generation and do not carry over to a different model. Confirm the grip's battery configuration matches the batteries already owned, since some grips accept the camera's standard battery while others require a different form factor. For photographers shooting extensively in portrait orientation, the added controls are often as valuable as the extra battery capacity. COLAMCO supplies camera battery grips for the photo and video programs business, government, and education organizations run.