Is my understand of DB correct..
If you hang a brick from a rope it hangs vertical : perfect static balance. When one spins round fast enough the brick sits horizontally out during the fast spin due to the centrifugal forces created by that spin
The ulitimate example of 'out of dynamic balance'
Dynamic balance is creating a situation where centrifugal forces are in balance and the 'brick effect' wont happen
If one had a rig with just 2 centres of mass - say camera and a weight
If the camera was 2kg and the weight 1kg then static balance with 'infinite' drop time would be acheived by putting the camera L cm from the Gimbal and the Weight 2*L cm from the gimbal
But if that rig was spun it would end up tilted absolutely horiztal ie the lens facing the floor or sky because the centrifugal forces would pull the rig into that position
Hence the need for a third centre of mass positioned in some way that the centrifugal forces can be equalised (while keeping static balance of course)
The merlin is either designed where DB is hard to acheive because ther is no adustment of the wieghts in the horizontal plane OR designed so amazingly that the arms closes around a cicumference changing the ratio of the front and mildly rear masses making DB possible but not simple to grasp especially with the added confusion that not all of the cookbook settings includ a front weight, knowing of GB probably the latter...
Edited by Sam Morgan Moore, 17 January 2009 - 01:48 AM.