ARRI multi cam RF
Introduction
This article describe the coverage of this event: RAYE - Live at Royal Albert Hall (UK)
With The Verve and Alex Urazov/Specialcams for the RF side.
See the live here:
We will focus on the wireless cameras:
- 3 x ARRI Alexa Mini LF:
- 2 x on Steadicam
- 1 x in the middle of the public
- 1 x FX3 on robotic head
RCP/RIO kits
Alex Urazov has made a great job on the RCP/RIO setup with some "kits":
With various cables to fit all the use cases and various cameras.
Wiring
Setup
REMI
For RCP/RIO link, local or remote, we use the REMI.
On every RCP (4) and every RIO (4), we need to setup the same REMI tag/group:
This way, they're all in the same group and will be able to talk to each other.
RIO : Camera 1 - Steadicam A / ARRI
- ARRI Alexa Mini LF
- Angenieux EZ-2 22-60mm T3 - PL Mount
- RIO:
- Iris with Tilta Nucleus M
- RFD900 for RF
- Huawei 4G USB dongle
RIO : Camera 6 - Steadicam A / ARRI
- ARRI Alexa Mini LF
- Angenieux EZ-1 22-60mm T3 - PL Mount
- RIO:
- Iris with Tilta Nucleus M
- RFD900 for RF
- Huawei 4G USB dongle
RIO : Camera 10 - Steadicam B / ARRI
- ARRI Alexa Mini LF
- Angenieux EZ-1 45-135mm T3 - PL Mount
- RIO:
- Iris with Tilta Nucleus M
- RFD900 for RF
- Huawei 4G USB dongle
| Wiring | Setup | Block |
|---|---|---|
 |  |  |
RIO : Camera 8 - Robotic cam / Sony FX3
Setup:
- Sony FX3
- Sony 12-24mm f2.8 GM Lens - E Mount
- RIO:
- RFD900 for RF
- Huawei 4G USB dongle
| Wiring | Setup | Block |
|---|---|---|
 | | |
More informations can be found here
Here, the control of the FX3 is through the USB-C port of the camera. We can then control:
- Exposure (Iris, ISO, Shutter)
- White balance (R/B and Color temp)
- REC start/stop
The iris is controlled through the camera, through the camera mount, no tilta motor needed here.
For the RF side, we use the RFD900:
| RF Bridge | Camera |
|---|---|
 |  |
More information can be found here
Here we setup a RF ID unique on every camera, it will allows us to use the same modems ID/frequencies and link everything on the NIO that will use a single modem (instead of one per camera).
For the 4G, it's plug and play. Setup your dongle following this guide. Plugs in RIO, and you're good to go.
The RIO will do a bonding between RF and 4G.
While 4G is perceived as unreliable as you open your smartphone and load a webpage with a lot of content (pictures, video, etc.).
For camera control, we use a very small amount of data, and it's very reliable.
The RF here is mainly used as a backup link and the 4G is the main link.