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ARRI CAP

Compatible models​

  • ARRI Alexa mini
  • ARRI Alexa mini LF
  • ARRI Alexa 35

For Amira and SSCP, check our ARRI SSCP guide.

Controls​

ControlARRI CAP
Exposure (Iris, ISO, Shutter and ND filter)✔
White balance (R/B and Color temp)✔
Black balance (R/B)✔
REC (start/stop and status)✔
Other (Multi matrix, Black Gamma, Knee, Test/Bars)✔
Scene file : save/recall✔

Wiring​

The camera is controlled over IP:

Setup​

Camera setup​

You need to:

  • Setup a static IP on the camera
  • Activate and configure CAP control

Camera IP​

In System > Network/WiFi, setup:

  • LAN IP mode to static
  • LAN static IP to desired cam IP (here 10.0.2.6)
  • LAN static subnet to desired cam subnet (here 255.255.0.0)
note

If the RCP doesn't have an IP address in the same range as the camera IP, you should add one in the LAN section by following this guide.

In this setup, my camera IP is 10.0.2.6/16 and my RCP IP is 10.0.3.10/16

CAP control​

In System > Camera Access Protocol (CAP):

  • Ensure Enable CAP Server is checked
  • Ensure CAP Server Password is set to arri

RCP configuration​

  • Click on the + in the camera block, a new panel will appear on the right
  • In General Configure a Number and a Name
  • Select ARRI for the brand and CAP as the model
  • Enter the IP of your camera

If everything is properly configured, it should go green:

Going further​

External Lens Control (RIO)​

But you can control the iris with the Lens block:

  • You have a Fuji or Canon motorised lens, follow this guide
  • You have a non motorised lens, you can integrate tilta motors

More shading control​

CAP protocol is limited to the controls listed above. If you need more control you, you can combine it with a LUT processor. Check our VP4 manual for more information.