The Blackmagic Design URSA Cine B4 Adapter Cable is a dedicated lens control accessory that lets you drive professional broadcast B4 lenses directly from a Blackmagic URSA Cine camera. It converts the 7-pin Lemo EXT control connector on the front of the URSA Cine to the 12-pin Hirose lens control connection used by box-style and broadcast B4 glass, passing both power and lens data so servo functions communicate properly with the camera body.

Paired with the optional Blackmagic URSA Cine Mount B4, this cable is the link that completes a true broadcast workflow on the URSA Cine, enabling control of B4 broadcast and box-style lenses for live production, sports, ENG, and studio use. Because it carries the standard 12-pin Hirose control standard, it works with the established ecosystem of professional 2/3-inch broadcast lenses that camera operators already rely on.

Built and specified by Blackmagic Design as a first-party URSA Cine accessory, this adapter cable ensures correct pin-out and signal compatibility between the camera and B4 lens control, eliminating guesswork and the need for third-party wiring. It is an essential cable for any URSA Cine operator integrating B4 broadcast lenses into their rig.

Features

• Connects professional broadcast B4 lenses to the Blackmagic URSA Cine camera
• Converts the camera's 7-pin Lemo EXT control connector to a 12-pin Hirose B4 lens control connection
• Transmits both power and lens data for full servo and control communication
• Supports box-style and broadcast B4 lens control workflows
• First-party Blackmagic Design accessory engineered specifically for URSA Cine
• Designed to pair with the Blackmagic URSA Cine Mount B4 for a complete broadcast lens setup
• Uses the industry-standard 12-pin Hirose control interface for wide B4 lens compatibility

Technical Specifications

• Type: Lens control adapter cable
• Compatible Camera: Blackmagic URSA Cine
• Camera-Side Connector: 7-pin Lemo (EXT control connector)
• Lens-Side Connector: 12-pin Hirose
• Lens Compatibility: Professional broadcast B4 lenses (box-style and broadcast)
• Signals Carried: Power and lens control data
• Manufacturer Part Number: CINEURSABMNTACB4
• UPC: 9338716010695

What's Included

• Blackmagic URSA Cine B4 Adapter Cable