Blackmagic URSA Cine Mount B4

Blackmagic URSA Cine Mount for B4 Mount Lenses

The Blackmagic Design URSA Cine B4 Lens Mount allows broadcast and box-style B4 lenses to be used with the URSA Cine camera, making it a practical solution for facilities and operators with an existing investment in B4 glass. Designed with precision optics engineered specifically for the URSA Cine's RGBW sensor, the mount minimises spherical aberrations to maintain image integrity across the frame. When paired with a compatible B4 lens, it unlocks the camera's dedicated 4.6K B4 crop mode in 16:9, supporting high frame rates up to 240 fps for slow motion acquisition.

Features

• Purpose-built optics matched to the URSA Cine's RGBW sensor, reducing spherical aberrations for clean, accurate imagery
• Full compatibility with industry-standard broadcast and box-style B4 mount lenses, protecting existing lens investments
• Unlocks the URSA Cine's 4.6K B4 crop mode in native 16:9 aspect ratio
• High frame rate support up to 240 fps in B4 crop mode, enabling high-quality slow motion capture