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!

The handwheel is without function in the main menu. Press the RAMP button when the camera is running to start the ramp. The camera can be started, by pressing the RUN button on the WMU-1.

The ramp can be reversed, by pressing the RAMP button again: the ramp then reverses its direction until it reaches the start value again. For best results wait until the end of the ramp.

Note:

To check the image in the viewfinder, the iris

 

can be opened completely by pressing the

 

OPEN button. The iris remains open until the

 

OPEN button is released again.

 

This does not alter the programmed settings.

 

The OPEN button is without function while the

 

camera is running.

By pressing the SET button the currently set shutter angle (if controlled by the WRC-1) can be displayed in the first display line, the currently set camera speed is shown in the second display line.

With most lenses, the T-stops before the end-stops are not exact due to the tolerances involved. In order to avoid incorrect exposure, the adjusted iris range should not contain these values.

With the iris wide open a lens-related reduction in brightness towards the edge of the image may occur, looking like an incorrect exposure. The exact values are dependent on the lens type and must be determined with test shots.

Controlling the Iris

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