Specification

Note: The CD20A features 8 levels of counterbalance adjustment via a handwheel and 2 additional levels via levers, which can be combined freely.

Additional Features and Specifications

• ● Angle Sensor Resolution: 0.0005°
• ● Canon and Fujinon Broadcast Full Servo Lens Data Reading
• ● Lens Sensor Accuracy: 0.01°
• ● Lens Sensor Data Inversion Function
• ● Customizable Three-Axis Coordinate Directions
• ● GENLOCK Synchronization Function
• ● Automatic Data Transmission at 50Hz / 60Hz
• ● Camera ID Configuration Function
• ● Data Upload Format: FreeD Protocol
• ● Data Output Interface: Ethernet UDP Mode
• ● System and Positioning Parameter Storage: Previous settings are retained upon reboot, eliminating the need for reconfiguration
• ● Field of View (FOV) Angle Measurement and Vertex Offset Measurement
• ● Compatible with Vertical Shooting
• ● Digital Level with 0.01° Accuracy

The CD15A/CD20A head not only provides camera pan and tilt angle data along with lens data, but it also includes camera position data. This position data specifically refers to the FOV (Field of View) angle vertex position (also known as the eye point).

Lens Data Acquisition

The system can directly acquire full-servo lens data from Canon and Fujinon broadcastlenses. For semi-servo lenses and cinema lenses, the system is equipped with external sensors. These sensors come with mounting brackets that fit 15mm and 19mm support rods, as well as direct lens-mounted brackets. Additionally, the sensors are equipped with different module gears to ensure compatibility with various lenses.

Position Data Provided by the System

The head system offers the following position-related data:

• Camera Height (“CameraHigh”) – The vertical position of the camera.

• FOV Offset – The distance between the FOV angle vertex and the head’s pan axis.

• Side Line – The lateral offset of the camera from the head’s center.

If the camera is mounted with a slight angular misalignment, the system allows compensation using the following parameters:

• “PANo” – Horizontal (pan) axis correction.

• “TILTo” – Vertical (tilt) axis correction.

• “ROLLo” – Roll axis correction.

When shooting in a vertical orientation, an L-shaped mounting plate may introduce a lateral shift in the camera’s position. In this case, simply adjusting “Side Line” and setting “ROLLo” to 90° ensures proper alignment.

FOV Angle Measurement

The head system includes a FOV angle measurement function, allowing users to accurately determine the lens’s FOV angle and its vertex distance from the pan axis using a simple measuring tape or laser rangefinder. This feature significantly simplifies the creation of lens files. Since the FOV angle vertex moves extensively along the optical axis during zooming, this measurement function provides critical foundational data for precise virtual tracking.

Built-in High-Precision Digital Level

The head is equipped with a high-precision digital level, featuring an accuracy of 0.01°, comparable to high-end standalone digital levels available on the market.