Lens data information can be exported into Reality Setup by using the Camera Exporting section under the Reality Exports tab.
Click ADD NEW → REALITY → LENS Content Browser.
Rename lens data as MyLens and double click on it. You can implement LensData information regarding your specific lens information.
Click EDIT → PROJECT SETTINGS from top menu.
Scroll down, Click Exports under Reality category.
Click ➕ button. Select the lens you created.
Launch the Reality Control and press F7 to launch the Reality Setup. Click PLAY on Reality Editor. On the nodegraph:
Click the Lens Node, under Lens Category, you can choose lens data that you exported.