ARRI WCU-4 User Manual page 31

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Press the LIMIT soft button again to deactivate the limits. The
symbol will disappear.
K-LIM
The K-LIM soft button lets you set focus knob limits. A knob limit
limits the range of the focus knob. To set a knob limit, proceed as
follows:
1 Set the focus knob to the first limit position.
2 Press and hold the K-LIM soft button.
3 Turn the knob to the second limit position.
Release the K-LIM soft button. A blue 'KNB' symbol will
4
appear next to the K-LIM soft button, indicating that knob
limits are set.
OFFSET
The OFFSET function lets you correct an offset between the
physical focus scale of a lens and the corresponding lens data
values. To set an offset, proceed as follows:
1 Drive the lens ring to a witness mark, for example 3' 6".
2 Press and hold the OFFSET soft button.
3 Turn focus knob so the value in the WCU-4 display lines up
the physical position on the lens ring.
Release the OFFSET soft button. An orange 'O' symbol will
4
appear next to the OFFSET soft button, indicating that an
offset is set.
Press OFFSET again to deactivate the offset. The symbol will
disappear.
MARK
Press the MARK soft button to set a digital focus mark at the
current focus knob position. A colored line will appear on the lens
data display focus scale. Up to eight color-coded focus marks can
be set. The WCU-4 will vibrate when passing a mark with the focus
knob, if vibration is activated.
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