Losmandy’s new Vector Balancing System eliminates the problem inherent in all lightweight jib arms: the arm always seeks its original balance point. For example, if the arm is balanced horizontally, and the shot ends with the camera near the ground, the operator must apply force to keep the arm from rising back up to its original position. The Vector Balancing System removes the inertia from the jib and transforms it into a zero-drift system, ensuring that the arm will always stay perfectly balanced regardless of its stopping point. Now the operator can make clean stops.
 

The Vector Balancing System now comes as standard equipment on the Porta-Jib and Porta-Jib Traveller.

How to use the Vector™ Balancing System

Install the Vector System on the back of the main weight shaft.  Set the jib arm horizontally and balance it by loading counterweights on the two horizontal counterweight shafts, while keeping the jib arm as horizontal as possible.  Fine tune the balancing with the sliding fine tuning balance weight, (standard feature on the Standard, optional on the Porta-Jib Traveler).

Remove some of the weights (between a quarter and half of the total weight) from the horizontal counterweight shafts and load them on the Vector bar and secure the weights between the two collars.  At this point the jib should still be balanced and stay horizontal.

Tilt the jib nose down to a 45° angle. If the jib tries to move back up, move the counterweights on the vector system up.  Tilt the jib nose up to a 45° angle.  If the jib tries to move back down, move the counterweights on the Vector System down.

All new Porta-jibs may be ordered with the Vector Balancing System. Upgrade Kits available.
 
 
 
 

DOLLIES

FLEX TRAK

ACCESSORIES
Adjustable Columns
Adjustable Tripods
Mini-Scissor Arm