4 speed / compensation iris and shutter angle 50, Controlling the camera speed – ARRI WRC-1 User Manual

Page 113

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5.7.4 Speed / compensation iris and shutter angle 50%

The camera speed can be manually adjusted within the
pre-defined end-stops of the handwheel
(master value: Camera speed).
The exposure is automatically compensated for with the
iris and the shutter angle at equal proportions.

If the iris control is not available, the flashing warning
‘NO IRIS’ is displayed in the main menu. Connect the iris
control as described in chapter 4.1.2, calibrate the lens
and assign the T-stops as described in chapter 5.5.1!

The first line of the main menu shows the mirror shutter angle,
which is automatically adjusted within the pre-defined
limit values. The symbol ‘F’ at the end of the first line
indicates the additional control of the iris. The second line
shows the currently adjusted camera speed using the
handwheel.

By pressing the SET button, the automatically adjusted
T-stop can be shown in the first display line. The display
shows full T-stops followed by the tenth of a T-stop.
Example: T-stop 2.8 plus half a T-stop is shown as 2.8_5.
The tenths of a T-stop are linearly divided between the
two full T-stop positions.

Note

The following warnings may be displayed:
‘IRIS TBL’ – a valid iris table has not yet been
activated;
readings with ‘NO’ in the first display line
indicate that the selected function is currently
not available (example: ‘NO IRIS’ although the
iris control is activated on the WRC-1, the iris
motor has not yet been connected);
readings with ‘RANGE’ in the second display
line indicate that the adjustment range of a
parameter has been exceeded (example: the
selected speed is not available with this camera);
readings with ‘OFF’ in the first display line
indicate that this function is deactivated on the
camera (example: shutter angle of the 435 is
set manually = ‘OFF ANGLE’).
Correct parameters must be set before the
camera is started!

Controlling the Camera Speed

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