VariZoom VZCINEMAPRO-JR-K4 - Manual (Page 12)

Jib Counterweight Option
Some lightweight jibs may not have enough mass to neutralize the high acceleration and torque of the
CP Jr head. If the motion of the head causes your jib to sway from side to side in a way you want to
eliminate, we have a counterweight option that will effectively eliminate the problem.
Heavier jibs will not be affected much, and the effect is only significant during sudden moves. Adding
our counterweight to the CP Jr balances out the rotational inertia so even lightweight jibs will not be
susceptible to the swaying effect caused by sudden moves.
Attaching the counterweight is simple.
Before attaching the counterweight, fix the
head to your jib.
(1) Start by attaching the interface plate
to the head with the 4 small screws
(supplied). Now fix the support arm to the
interface plate using the supplied
thumbscrews, lockwashers, and flat
washers. Put the flat washers between the
support arm and the lockwashers to
prevent scratching. Tighten the
thumbscrews thoroughly.
(2) Now attach the square weight to the
support arm, using the same type of
thumbscrews, lockwashers and washers.
Tighten the thumbscrews thoroughly.
The counterweight adds about 7 lbs total
weight to the system, so if you don’t need it, try
operating without it first. Also note that some
swaying may be caused by the camera platform being
(1)
(2)