I think the widelux has a slow exposure setting which would allow the camera to do the run around thing. If you can't slow the lense rotation down, I wouldn't know how to achieve that effect. What's the slowest exposure on the horizon? The cirkuts have an effective exposure of around 1/2 -1/8.
Doesn't the widelux have a 1 second setting? if so it might be possible with that.
Jamie