Hello
I am having problems running a tolerance analysis that only uses the TEZI operand. I get the error message that says “TOFF requires surface 0 to have a physical sag” which makes no sense. You can see the screen shot in the image attached. I think this is a bug in the software.
Any ideas?
Regards
Diego
Best answer by Ethan
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+2
Hi
Thank you for bringing this to our attention. I mentioned this in the case you opened, but I wanted to share the following information here in case other users have a similar issue.
As you discovered, this is indeed a bug in OpticStudio (OS) that is known to our developer team. The issue relates to the use of a legacy perpetual Zemax license and how it interacts with the subscription-only Composite Surface feature. There is a pending fix for this error that will be released in the next service pack.
As a workaround in the short term, perpetual license users can try rolling back to OS 22.2.1, which can be found here: https://www.zemax.com/pages/opticstudio-downloads-legacy. Users should be able to deploy the TEZI operand as usual in that version.
Best,
Ethan
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