Thank you very much for showing me that (sorry that I missed it).  I've never ever seen it nor tried to use it.

Here are my  thoughts on the issue.

1.)  Weirdness in rendering can happen if you need to clean out the DAZ temporary directory.  I doubt that's an issue but maybe it is and since we're shooting in the dark, I just thought I'd bring it up.

2.)  Just to make 100% sure, you're turning on the DOF on the camera that you're actually doing the final render with?  If you have more than one camera in your scene, try deleting all of them but the one you're doing the final render with and see if that fixes it.  Just another idea trying to resolve it.

3.)  Is this a file that you started in an older version of C?  For example, I have my own personal default file which I open to start new scenes.  I noticed several versions ago that opening an old file with a new version can sometimes lead to weirdness.  Let us know if this is a possibility.

Keep talking to us about it.  If things are still whacky, send me a site mail and we can figure out a way for you to send me a file where this is a problem and we'll see if I can see a weird thing in an actual file.  Don't take my inability to find one radio box in the render room as a limitation.  Free help is a good thing.

If the issue still does not present itself at that point, then I would wager you have something unique going on in your system.  I don't think we're quite there yet though.

-Kix