The Blackmagic Design URSA Mini Pro PL Mount is an interchangeable lens mount accessory for the URSA Mini Pro 4.6K, 4.6K G2, and 12K cameras. It allows filmmakers to use professional PL-mount cine lenses with these camera bodies. The PL mount is the industry-standard lens mount for high-end cinema cameras, known for its robust, positive locking mechanism and its ability to support heavy, large-diameter lenses with precise flange focal distance for consistent focus. By installing this mount, users gain access to a vast ecosystem of cinema lenses from manufacturers like ARRI, Zeiss, Cooke, and Angenieux, which are prized for their optical quality, character, and precise manual control (geared focus/iris rings).

The mount is engineered as a direct replacement for the camera's default EF or other mounts. It features a secure, positive lock mechanism with a lever to firmly engage the lens, ensuring no play or movement that could affect focus. The mount is constructed from high-grade metal to withstand the weight of large PL lenses and maintain precise alignment. Importantly, this is a passive mechanical mount—it does not provide electronic communication for autofocus or electronic iris control. Focus, aperture, and zoom must be controlled manually on the lens itself, which is the standard practice in professional cinema production. This mount is essential for cinematographers who own or rent PL-mount lenses and need the optical performance and manual control they provide for narrative films, commercials, and high-end video production.