EXR Metadata - Focal Length

[XtaaZ]

Hi,

How to get the focal length in mm when reading the CameraFocalLength metadata from an EXR?

I searched on different forums, scripts etc but no math seems to get the correct Focal Length.

Thanks a lot!

[roy.terium]

@XtaaZ Hey There 
Did you manage to find the solution to this yet? 

Thanks a bunch