ALEXA Mini 4:3 License Key

Arri Licenses » ALEXA Mini License Options » ALEXA Mini 4:3 License Key

The ALEXA Mini 4:3 License Key enables 3 new ProRes Recording modes:

  • 4:3 2.8K (2880 x 2160) @ up to 50 fps
  • 2.39:1 2K Ana. (2048 x 858 de-squeezed from 2560 x 2145) @ up to 120 fps
  • HD Ana. (1920 x 1080 de-squeezed from 1920 x 2160) @ up to 120 fps

Recordings are possible in all currently supported ProRes flavors up to ProRes XQ.


In combination with the ALEXA Mini ARRIRAW License Key, the ALEXA Mini 4:3 License Key will also enable internal Open Gate recording in MXF/ARRIRAW. (Open Gate recording in ProRes will not be supported.)

The following Open Gate Recording Modes will be supported:

  • Open Gate ARRIRAW (3424 x 2202) @ up to 30 fps
  • Open Gate ARRIRAW with 4:3 2.8K preview path (3424 x 2202 with crop to 2880 x 2160 in viewing path) @ up to 30 fps
  • Open Gate ARRIRAW with 2.39:1 2K Ana. preview path (3424 x 2202 with crop to 2560 x 2145 in viewing path) @ up to 30 fps
  • Open Gate ARRIRAW with HD Ana. preview path (3424 x 2202 with crop to 1920 x 2160 in viewing path) @ up to 30 fps
The ALEXA Mini 4:3 requires SUP >= 4.0.

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