Gitzo G1228 (top) and Feisol 3442, with Markins M10 ballheads attached. The 1228 is a predecessor to the current GT2540/GT2541 models.

The Gitzo has it's stock center column, the Feisol it's optional center column.

Note: For whatever reason I neglected to fully fold the Gitzo legs. They do fold up next to each other.