*With its 100mm levelable ball, the Ball Mount can be mounted to tripod legs with a 100mm bowl.

 *With its 75mm fixed ring mount, the Ball Mount can be mounted to tripod legs with a 75mm bowl. The leveling will need to be done with the tripod legs. The reason being is that a 75mm ball/bowl system does not have enough surface area to accommodate the clamping force of heavier rigs such as a slider.