Problem zygo SNF 2008-08-08 09:47:02: focus toggle not working

lindaw at lindaw at
Fri Aug 8 09:47:03 PDT 2008

when trying to focus with the focus toggle, the numerical z-axis position on screen is moving, but the image on the video screen is not changing focus at all.  Tried different toggle speeds, and the numerical position on the computer screen changes corresponding to the speed chosen, but the focus on the wafer image doesn't change at all.  Unable to get any kind of reading.

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