Title. Is this possible, or is there a workaround?
Sadly this is not possible with Corona camera. There’s request for this to be implemented, you may want to show your support in this tread: https://forum.corona-renderer.com/ Optical abberations for fisheye camera
The only workaround i can think of, would be to render z-depth pass and do DOF in post.
Ok, good to know - thank you Romullus. Yes, I will chime in to support the feature request, that would be nice to have for the fisheye lens.