I have exported an RPF image sequence of three colored spheres that i rendered in Carrara 6 pro into After Effects. When I apply a Depth of Field using the depth info from the RPF sequence I get some strange outlines on my spheres.
http://i7.photobucket.com/albums/y255/jubjub64/DoFProblem.jpg
You can kind of see it around the blue sphere in this pic but it is really obvious when the spheres overlap...
http://i7.photobucket.com/albums/y255/jubjub64/DoFProblem2.jpg
I looks like the g-buffer layers are not matching up exactly with the rgb layer.  I have tried turning off anti-aliasing in Carrara but the problem is still there.  One suggestion I received was to render out of Carrara at 32bpc but I don't know if I can specify the color bit depth in Carrara.  Does anyone have any suggestions?

Thanks for any and all help!

Trevan