Blackmagic URSA Mini Pro Shim Kit

The Blackmagic URSA Mini Pro Shim Kit is an essential maintenance tool designed for cinematographers using the URSA Mini Pro and URSA Mini PL cameras. This comprehensive kit includes nine precision-cut shims of varying thicknesses, allowing you to fine-tune the flange focal distance of your lens mount. By making these minute adjustments, you ensure that your camera meets the exacting tolerances required for professional cinema lenses, ensuring they remain sharp and hit their focus marks accurately across the entire zoom range.

In addition to the shims, the kit comes equipped with a specialized baffle tool to assist with the installation and removal of internal camera components safely. It is specifically designed to work with the URSA Mini Pro’s interchangeable mount system, as well as fixed PL models. Whether you are switching between PL, EF, or F mounts, this kit provides the necessary hardware to calibrate your camera for maximum optical performance, ensuring your production remains "tack-sharp" regardless of the lens choice.

Product Features in Detail

Precision Flange Distance Calibration

The primary function of this kit is to allow for the precise adjustment of the flange focal distance—the distance between the lens mount and the sensor. Proper calibration is critical to ensure that your lenses can reach infinity focus and that your focus marks on the lens barrel align perfectly with the actual distance to the subject.

Nine Graduated Shim Thicknesses

The kit includes nine individual shims, each cut to a specific, standardized thickness. This variety allows you to stack or swap shims to achieve a highly customized fit, compensating for tiny manufacturing variances in either the camera body or the specific lens mount being used.

Specialized Baffle Tool Included

To reach the mounting points on URSA Mini cameras, you often need to remove the internal light baffle. This kit includes a custom-engineered baffle tool that allows you to remove and reinstall this delicate component without scratching the sensor or damaging the internal housing of the camera.

Parfocal Zoom Maintenance

For cinematographers using zoom lenses, shimming is vital for maintaining parfocal performance. Without a properly shimmed mount, a lens may lose focus as you zoom in or out. This kit provides the tools necessary to ensure your glass stays in focus throughout the entire focal range, saving time and preventing ruined takes.

Universal Mount Compatibility

While designed as a companion for the URSA Mini Pro’s interchangeable mount system (PL, EF, F, and B4), the shims are also compatible with the original URSA Mini PL fixed mount. This makes it a versatile addition to any rental house or owner-operator’s kit who utilizes Blackmagic’s professional cinema line.

Professional Build Quality

Each shim is precision-engineered from high-quality materials to ensure they do not compress or deform over time. This durability ensures that once you have calibrated your mount, the settings will remain stable through the vibrations and temperature changes typically encountered on a professional film set.