Vinten Vision 250 Service Manual download pdf (Page 11)

Balancing the head

Balancing the Vision 250 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’.

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.

1. Release the centre lock (3) and the tilt brake (12). Turn the balance knob (2) counter-

clockwise until the head falls away from horizontal under the weight of the camera.

2. Release the slide plate clamp (15) and slide the camera backwards or forward until it bal-

ances horizontally. Apply the slide plate clamp (15).

3. Turn the balance knob (2) clockwise until the camera does not fall away when the head

is tilted and released.

4. Repeat steps 2 and 3 until perfect balance is achieved, when the camera will remain set

at any angle from +90° to –90° without falling away or springing back. Re-apply the centre

lock (3) and the tilt brake (12).

Press the switch (9) and make a note of the digital display (7). This will facilitate rebalancing this

particular payload.

WARNING! Be prepared to prevent the head falling away suddenly.

NOTE: If the digital balance setting of the particular payload is known, press the

switch (9) and turn the balance knob until the digital display (6) shows that

setting.

NOTE: Maximum tilt angle is less than 90° for heavy payloads with a high C of G - see

balance graph.

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Vinten Vision 250 Service Manual Page 11