Vinten Vision 250 E Maintenance Manual page 14

Contents
7 Both the pan and tilt mechanisms incorporate the Vinten thin film (TF) system to ensure smooth
movement of the camera about these axes and are fitted with control knobs
The whip-pan facility is unaffected by the pan drag setting. Both drag knobs are provided with scales
illuminated by the switch (9).
8 Friction brakes on each axis allow the head to be locked at any chosen position. The operating levers
for both brakes (14)(15)
9 A centre lock (5)
10 A level bubble (6), illuminated by pressing the switch (9), is fitted to the rear of the head.
11 Pan bar mounting points are located at the rear of the head, on either side of the camera mounting
platform. A telescopic pan bar
available on the mount serrations. A second pan bar may be fitted.
12 The Vision 250 E/IT head is supplied with a flat base
compatible Vinten tripod or pedestal, using either the four mounting bolts and washers provided or by using a
`Quickfix' adaptor.
13 The camera is attached to the head by means of a slide plate (13). A clamp
slide plate in position and a lock
14 The Vision 250 E is fitted with encoders for pan and tilt, which provide high-resolution real-time digital
output of up to 696,666 counts for 360° of pan and 533,333 counts for 360° of tilt. This output is configurable.
15 The Vision 250 IT uses the same high-precision encoders, together with encoders for lens zoom and
focus. The data is fed into an encoder data capture board installed in an IT interface box, normally mounted
adjacent to the head, which provides positional data to a virtual set computer via a switchable RS-232 or RS-
422 port, making it compatible with most virtual studio systems currently in use.
(29)
(28)
(27)
(26)
(25)
(24)
are fitted on the left-hand side of the head.
allows the head to be locked in the horizontal position.
(2) is supplied and is attached using a pan bar clamp, with angular adjustment
(11) prevents its inadvertent removal from the head.
Fig 1.2 IT Interface Box
First
Page
(19)(10)
(17) and is designed for installation on a
(1)
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to adjust the drag setting.
is provided to hold the
(21)
(22)
(23)
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