C25 Remote - Local Shading of Blackmagic Cameras

The C25 is a handheld shading remote for Blackmagic Cameras. It’s meant to be used by a camera operator or his assistent, connected to the camera with a short wire, helping to avoid shaking the camera by using the touch screen. The C25 can be used over SDI or Ethernet as many SKAARHOJ controllers can since it’s based on UniSketch OS.

Please notice enclosure have been updated from the unit demonstrated in the video, but functionality remains the same.

C25 Remote Features

  • 4 RGB buttons
  • 5 encoders with OLED displays
  • Microprocessor included in the body of the remote
  • Blackmagic 3G-SDI Arduino shield included in the body of the remote
  • Controls camera via Blackmagic Arduino Shield or ATEM
  • Fully configurable via UniSketch OS

Physical Specifications

  • Enclosure Size 16.7 x 8 x 2.9 cm
  • Weight 0.370 kg



Top connections on C25
Blackmagic 3G-SDI Arduino Shield

On the top of the controller, you find a 3G-SDI in and out BNC plug. Route the return feed to the camera through this connection to insert CCU data on the signal.

The Blacmagic 3G-SDI Arduino Shield supports the following outputs: 720p50, 720p59.94, 720p60, 1080i50, 1080i59.94, 1080i60, 1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94 and 1080p60, but the camera doesn´t have to be running the same video format as the program input, so you can use cameras in Ultra HD while the camera protocol is sent over HD signal to the camera.

Camera Support

The C25 controls any Blackmagic camera that supports CCU over the return SDI feed. This includes the Micro Studio Camera 4K, Studio Cameras and the URSA Mini (+ Pro). The CCU data is inserted on the SDI return feed.

Connections on the remote

The microprocessor in the C25 Remote have a tiny footprint and fits inside the body of the remote.

You either place your order by PayPal or by email and pay by bank transfer - please read the "Pricing, Terms and Conditions" page for more details. 

€ 1099

- for customers worldwide (except USA)  

$ 1299

- for customers in USA



Shipping Configurations:

Note for SKAARHOJ controllers with Blackmagic 3G-SDI Arduino Shields and Studio Fiber Converter/Camera Fiber Converter:

We have tested Blackmagics fiber converter products in general to work with SDI output. This includes the Mini Converter, ATEM Camera Converter, ATEM Studio Converter and ATEM Talkback Converter 4K. The only product we know does not work is the Studio Fiber Converter/Camera Fiber Converter. This product is not compatible with their own 3G-SDI shield which is the component we use inside the RCPs and other products. While the Studio Fiber Converter/Camera Fiber Converter will forward shading data from an ATEM switcher it will not do so for the 3G-SDI shield.

Bottom line is this: We cannot change this situation, only Blackmagic Design can decide to upgrade either the Studio Fiber Converter/Camera Fiber Converter or the 3G-SDI Arduino Shield to make it work. At this point we can suggest that you rather connects a controller to an ATEM switcher which will work as the master for sending out the shading data. You might employ a cheap ATEM switcher for only this purpose.