Blackmagic Design URSA Mini Pro B4 Mount

The optional B4 mount, with precision glass optics and spherical aberration correction, turns the Blackmagic URSA Mini Pro 4.6K G2 into a compact broadcast camera for your existing HD B4 lenses. The optics are designed to match the camera sensor. The mount replaces the existing lens mount and lets you remotely control record start and stop, iris and motorized zoom.

B4 mount for URSA Mini Pro 4.6K G2

Use your HD B4 lenses on the URSA Mini Pro 4.6K G2 camera, with correction optics matched to the sensor.

B42048 × 1152 optics1.1× magnificationURSA Mini Pro 4.6K G2

Optics designed for the sensor

Precision glass optics with a resolution of 2048 × 1152, an image circle of 10.56 × 5.94 mm and 1.1× magnification match HD B4 lenses to the camera sensor.

Spherical aberration correction

The mount optics correct spherical aberration and so match HD B4 lenses to the camera sensor.

Lens control

The standard 12-pin Hirose connector on the camera works with both B4 and PL lenses. You can remotely control record start and stop, iris and motorized zoom.

Dimensions and weight

Dimensions: 3.27 × 2.92 × 2.20 in (83 × 74 × 56 mm). Weight: 12 oz (340 g).

More information

To install it, simply take off the existing lens mount and bolt the B4 mount in its place, just as when swapping another mount or fitting shims.