Hi @TKSharpless
You just need to rewrite this in the calibration.xml file which you can find in C:\Program Files\Capturing Reality\RealityCapture folder or C:\Program Files\Epic Games\RealityCapture for app running through Epic Games Launcher.
Then check the 42nd line and add $(f*scale) there instead of $(f*36) or you can use both values like:
<format id="{0CA18733-1EBC-4254-9974-17197EB409BD}" mask="*.csv" descID="8370" desc="Internal/External camera parameters" writer="cvs" requires="component">
<body EulerFormat="zyx">#name,x,y,alt,heading,pitch,roll,f,f_pixpx,py,k1,k2,k3,k4,t1,t2
$ExportCameras($(imageName)$(imageExt),$(x),$(y),$(z),$(yaw),$(pitch),$(roll),$(f*36),$(f*scale),$(px),$(py),$(k1),$(k2),$(k3),$(k4),$(t1),$(t2)
)</body>
</format>
After changing the values you need to save the XML file.