Hello,
We have different values between Footprint and PARR operand ( see below):
- on footprint : Max radius = 0,1241
- in Merit Function : PARR Surf 23 = 0.120
![](https://uploads-us-west-2.insided.com/zemax-en/attachment/b85808c5-64e4-4c19-a7a7-12e0b98e4168.png)
how can we get the value of the footprint in the Merit function?
Thanks for your help,
Best answer by David.Nguyen
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