I purchased a used 75XB tripod with F-18 fluid head on Ebay. The tripod was in good shape, but the head was hard to use. Also, the bubble had lost it's fluid. I opted to buy a new head. It arrived today, and I see the ball at the bottom of the old head has to transfer over, but I can't see how to unscrew it.
Can I use the new F-18 head on the old tripod? Does the dome that attaches to the handle come apart from the old head? Help?