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URSA Cine 12K LF: Blackmagic RAW bitrate & storage per hour

The Blackmagic URSA Cine 12K LF records Blackmagic RAW. Maximum sustained write speed: 6000 MB/s. Figures per sensor mode and compression level at 24 fps — video only.

Figures at 24 fps. Other frame rates scale linearly — open the calculator to change them.

12K Open Gate LF (12288×8040, max 80 fps)

8K (8192×4320, max 120 fps)

4K DCI (4096×2160, max 240 fps)

Content-dependent codecs (constant quality, VBR) vary their data rate with scene complexity — the figures above are typical values, and actual rates range around them.

Cards and recording time

The URSA Cine 12K LF sustains up to 6000 MB/s, so its media has to keep up with the mode you shoot. At the highest rate in the tables above (1,362 MB/s) the recording times per card are:

Offloading a shooting day

90 minutes of takes come to about 7.4 TB. Over USB 3.2 Gen 2 (10 Gbps) that is 2 h 24 min for a single copy — double it if you verify with checksums, and multiply by the number of backups.

What hardware it needs

Playing this back in real time means sustaining 1,362.33 MB/s of reads. One hour of footage is 4.9 TB, and that is what has to travel every time you copy, back up or archive it.

Any card or drive rated below 1,362 MB/s sustained will drop frames on playback, whatever its peak speed says on the box.

Times are for a single copy without checksum verification. Verified offload reads back what it wrote, so it takes roughly twice as long.

Related guides

• Other Blackmagic cameras: URSA Mini Pro 12K · Cinema Camera 6K (Full Frame) · PYXIS 6K · Pocket Cinema Camera 6K G2
• Other cameras recording Blackmagic RAW: Panasonic LUMIX S1H (Blackmagic RAW)

Figures use decimal units (1 GB = 1000 MB), the convention used by drive and camera manufacturers. Computed with the same calculation engine as the Workflow Data Calculator — open it to add audio, streams, backup copies, offload time and storage cost, or to export a PDF report.