A dolly is a wheeled platform designed to support a camera tripod, allowing smooth and controlled movement of the camera around a studio or shooting location. The wheels are usually lockable to secure the camera in place when needed.
Dollies are commonly used in both photography and cinematography to achieve dynamic shots, tracking movements, or repositioning the camera without lifting the tripod. They help photographers and videographers maintain stability while enabling fluid motion, making them especially useful for studio work, product photography, and controlled camera movements in film production.