Balancing The Head - Vinten Vision 11 Maintenance Manual

Contents

Balancing the head

10 Balancing the Vision 11 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 balanced, the head
and its payload can be set to any tilt position and the head will maintain this position with "hands off".
11 The graph (Fig 2.2)
may be used to ascertain the suitability of the head for any given combination of camera, lens and
accessories. The shaded area of the graph corresponds to those loads/C of G heights that can be balanced
over the full tilt range. The areas to the right indicate the progressively reducing tilt range over which the head
can balance higher loads.
12 Prior to balancing the head ensure that the pan bars and any ancillary equipment have been fitted in
order to prevent upsetting the balance once it has been achieved.
12.1 Release the tilt brake (15). Turn the balance knob
from horizontal under the weight of the camera.
12.2 Release the slide clamp
horizontally. Apply the slide clamp (6).
12.3 Turn the balance knob
and released.
8
200
190
180
7
170
160
6
150
140
130
5
120
110
4
100
90
80
3
70
60
2
50
2 4
8
4
illustrates the relationship between load and centre-of-gravity (C of G) height and
(6) and slide the camera backwards or forward until it balances
(2) clockwise until the camera does not fall away when the head is tilted
6 8 10
12 16 20 24
Fig 2.2 Balance Graph
(2) counter-clockwise until the head falls away
±90°
±60°
12 14 16
28 32 36
TOTAL LOAD
First Previous Next
Page Page Page
±40°
18 20 22 24
40 44 48 52
Previous
View
26 kg
56 lb
16