The massive and quite heavy tripod head Cullmann MB6 also keeps a heavy DSLR with full-frame lens light heavy from (tested with 24-70 / 2.8). With long exposures in inclination, in the professional class DSLRs (with multiple batteries and heavy lens) sagging occur. Normally, in a horizontal orientation but not a problem. The adjustment of the head goes quickly and accurately by hand. The black coating dissolves at the bottom around the thread off after some time. The included Quick adapter plate is basically OK, the water level is very small and poorly visible. Furthermore, the central screw should now and then be tightened, otherwise the stability suffers. So when traveling always have a matching Allen key! the quick release plate is not suitable for professional DSLR, since the contact area is too small. Remedied dieCullmann Schnellkupplungsplatte L