First all is to thank to Mike Donovan for sharing this. He made a script to fix a problem in RealFlow when importing cameras from 3D platforms like Softimage. Problem is that the camera is coming in with vertical FOV instead of horizontal that was set in softimage, which is indicating a big problem if you try to get a close result for your shots in RealFlow and your 3D platform by using cameras. This script gets the selected camera and changing the vertical FOV to horizontal again to set it as the 3D original scene.
The script can be downloaded from here