Controlling the Iris

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 pro-

 

grammed settings. The OPEN button is without

 

function while the camera is running.

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.

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