9f4ac95357
If a USD camera has an fstop value of 0, we need to treat that as meaning DOF should be disabled (and animate it accordingly). https://openusd.org/release/api/class_usd_geom_camera.html#a335e1647b730a575e3c0565e91eb8d49 Pull Request: https://projects.blender.org/blender/blender/pulls/145366