Five things to look out for
With a hefty full-frame body and a long lens, you’ll want a ball head to be stiffer than with a mini mirrorless setup.
Some balls can stick, resulting in jerky movement. A quality ball coating and socket lining should help.
Locking knobs that aren’t grippy enough can yield unwanted movement. Rubber knob coatings help.
The Arca-Swiss quick-release mounting standard is great for cross-compatibility with other tripod heads.
Travel tripods that close with their legs flipped back around the head require a slimline ball housing.