A dolly grip is a specialist in the film and video production industry who is responsible for operating and maintaining the dolly, a specialized piece of equipment used to move the camera smoothly during filming. The dolly grip works closely with the camera operator and director of photography (DP) to execute the desired camera moves and shots. This person must have a strong understanding of the dolly and its various components, including the camera mount, track, and wheels, and be able to troubleshoot technical issues as they arise. They also play a key role in ensuring that the dolly is properly set up and positioned for each shot and that the camera is securely mounted and balanced on the dolly. Good communication skills and the ability to work well under pressure are important qualities for a dolly grip.