Video-a ss is t-sy stem – ARRI ARRIFLEX 416 User Manual

Page 87

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Video-A

ss

is

t-Sy

stem

Check all settings on a correctly adjusted monitor.

If the mechanical iris is closed more than necessary, the

IVS will compensate by increasing the gain and restore

the image brightness electronically. This creates additional

electronic noise. To avoid this, open the mechanical iris.

• To change the iris, turn the wheel with the iris symbol Õ.

10.3.3 Alignment of the image position

(X, Y and Rotation) and focus

The position of the image on the CCD Chip and its focus can

vary slightly from camera to camera. The video image on the

monitor may appear off-centre, not levelled or out of focus.

All adjustments can be made by using a 1,5 mm Allen key,

which is delivered with the IVS.

Do not use force!

• Image position adjustments in x and y direction can be

made with the adjustment screws marked x and y

a

photo

.

• The screw marked Ò moves the video image horizontally

on the monitor. The screw marked Ó moves it vertically.

Note:

Design restrictions imposed by the IVS‘ small

size mean that the direction of movement

imparted by the x and y adjustment screws

might be not precisely in the x and y directions.

• Image rotation can be adjusted by the screw marked

with the Ô symbol

a

photo

.

• The image can be focussed using the screw which is

marked with the F symbol

a

photo

.

Ó

alignment

Ò

alignment

Ô

alignment

F alignment

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