Yes, see this:
You can also have a look at this:
Postscript fills to objects (ou YouTube)
Haven't tried it yet.
Good thanks,
EPS Sometimes wont work for me, but also PDF comin' handy ! ;)
I was having the same problem, but I figured out the missed step. You have to make a copy and remove the fill. Then select both prior to doing the lens step (make sure you do not have any transparency on). Hope this helps : )