Find the focal length of a shot by drawing perspective lines
FocalLengthFinder
Updated: 15 December 2023
Author: jphowey
Compatible Nuke versions: 13.2 or later
Compatibility:
Use this tool to figure out the Focal Length of a shot based on visual perspective lines.
Connect the gizmo to your footage.
Use the red and blue lines to trace parallel lines in the shot.
Red lines should be on a plane perpendicular to the Blue lines and have a vanishing point (not completely parallel).
Entering the Camera Sensor size width is optional, but without it only the angle of view can be calculated.
Sensor size is needed to figure out Focal Length.
Let me know if you run into any issues!
