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14
Ensure that the centre lock
(4)
is engaged (see
Locking the platform
).
Slide the wedge adaptor operating lever
(1)
forward (parallel to the wedge) about 6 mm (1/
4 in.) against spring tension. Pull the operating lever out, away from the body of the wedge
adaptor, as far as it will go.
Insert the camera wedge into the wedge adaptor and push it forward into full engagement.
Push in the operating lever
(1)
until it lies parallel with the wedge adaptor body. During this
operation resistance of the spring-loaded over-centre mechanism will be felt. As the lever
reaches the end of its travel it will slide back (parallel to the wedge) to the locked position.
Confirm that the lever is in the locked position. This is indicated by coloured bands above
the lever. When the green band only is visible, the lever is locked. If any of the red band can
be seen, the lever is not locked.
Install the remainder of the payload (lens, zoom and focus controls, viewfinder, prompter
etc).
Stability
Balancing the head
Balancing the Vector 90 head achieves two objectives. Firstly, when a head is correctly balanced
the operator will need a minimum amount of even effort to move the head. Secondly, once bal-
anced, the head and its payload can be set to any tilt position and the head will maintain this po-
sition with ‘hands off’.
The graph
(Fig 3)
shows the range of load and C of G height that can be maintained in balance.
The shaded area of graph corresponds to those load/C of G combinations that can be balanced
over the full tilt range. The area to the right indicate the progressively reducing tilt range with great-
er load and higher C of G
WARNING! When mounting the head on a tripod, it is possible to set the tri-
pod legs so that the centre-of-gravity of the tilted payload falls
outside the footprint of the tripod, leading to instability.
Use the mid-level or floor spreader to ensure that the tripod
legs are spread sufficiently so that the centre-of-gravity of the
tilted payload remains within the footprint of the tripod.
Secure the tripod with the tie-down hook or hang a suitable
weight from the hook.
NOTE:
It is important that the pan bar(s) and all camera accessories (lens, zoom and
focus controls, viewfinder, prompter etc.) are fitted in their operational
position before balancing the head. Any equipment fitted or adjusted later will
unbalance the head.