Using the Sensor Size window
There are two options available depending on the type of video signal that is being sent into the Mk2 server
Depending on the type of camera being used, there are two options available for configuring the sensor size:
Broadcast - Use this option if the video signal has no monitoring or head up display surrounding the image, a generic 2/3 sensor size option is provided as a default and is applicable to all 2/3" broadcast cameras
Movie/FX - This option must be used when a head up display is present on the video signal.
Use the Options dropdown on the right to select between the two options depending on your input signal
The primary value that must be entered is the width and height of the active sensor area.
For nearly all professional broadcast cameras that are operating in a 16x9 aspect ratio, then the 2/3" sensor size option can be used, this uses a standard 9.59x5.39mm size sensor.
If using the Movie option, please find the actively used size of the sensor from the manufacturers camera documentation. For instance an Arri Alexa LF in Open Gate 4.5k mode has an active sensor size of 36.70 mm x 25.54 mm
There is a difference between the overall size of a camera's sensor, and the size that may be actively used in a certain recording mode
Enter the values for your camera model and shooting mode into the Active sensor area fields. Following this click and drag the magenta lines to match the part of the image that is displaying the camera image, the image below demonstrates this
The CG crop frame is optional and is used to define an area of the frame that CG will only be rendered within, typically this is set to match any framelines that are being used. If no crop is required then set the values to match the Active sensor area values. Clicking and dragging the yellow lines is also possible.
Changes in sensor size
Before proceeding ensure that the camera is configured in the mode that you intend to operate in. As Ncam uses the Mon out signal, any changes to the aspect ratio of the camera image or scaling/magnification of the Mon out will invalidate an existing calibration
As this is a 2/3" sensor size camera, and the Mon out signal will not have a head up display present, simply select the "Broadcast" options
Assuming the camera is operating in 4.6K 2.40:1 mode, then the active sensor size values would be 25.34 mm x 10.55 mm. Following this, the Magenta lines should be adjusted to match the image from the camera