My Autopano Pro forum

I've looked at pano heads shown on the B&H web site.  But there is some lack of information.  I cannot determine how these heads connect to the tripod itself.  I have a Bogen tripod with a 3D head, which supposedly is an option with a more conventional head as another option (sold either with a tripod or separately).  Disassembling this, I find 2 ways to possibly connect a new head.  One is a round post about 30mm wide and 15mm high.  The other is a screw that is fixed to the tripod onto which the round post was screwed in (and locked with 3 set screws).

When putting a new head on a tripod, I don't know what kind of connection is standard, or if there is a standard.

The 3D head on this tripod lets me easily aim in a lot of directions.  But it won't go far enough outward to let me center the lens nodal point.  So I will need a better head.  I don't want to buy a new tripod.  I'd rather just level out the 3D head I have now and mount on top of it.

What would be ideal is a pano head that will connect to an existing tripod right where the camera mounts.  I don't know the designation for that screw, but all cameras I have ever worked with since the 1970's fit that same screw hole if they had one at all.  Even my cheap P&S digital camera fits it.

So the big question.  How many pano heads will attach directly to the camera base of a tripod, and present a new camera base for the camera, after its adjustments?