How to get camera FOV in degrees from focal length in mm

The camera angle ​​in Blender can be set both in millimeters – the Focal Length parameter, and in degrees – the Field of View parameter.

To get the Field of View in degrees from the Focal Length value in millimeters, we can use the following formula:


FoV – camera Field of View in radians

W – camera Sensor Width in millimeters

S – camera Focal Length in millimeters

For example, for the selected camera with a Focal Length of 60 mm and a Sensor Width of 36 mm, the camera angle in degrees will be:

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