To this head for my EOS 7D with battery grip and lens up to 70-200mm f 4.0. Am very pleased by stability, carrying capacity and handling. The ball runs quietly and smoothly, friction and finding work well. Of particular note: the changeable in its position locking lever and (unlike many other products) and good practical indicating Levelling bubble. The product description particularly advertised finding the 90-degree position or their release brings me personally in practice although nothing, but maybe someone just for meaningful use. The ball head is large and heavy. But but he is stable and cost even less than the next smaller version (?). When in doubt, always take the bigger version, even if it is somewhat unwieldy. In tripod Questions stability, viability and ball diameter is irreplaceable!
