I have a lens solution for the new POP QPD, plotted below. To get the beam size, I started with the waist at the ITM, so the out of vacuum table starts around 6 meters on this plot. Also, "PD" is the QPD, but the position marked on the plot is the maximum distance from the 2nd lens. In reality, I will place it a few cm after the lens. Once I've got that laid out, I'll move the 110PD (and its lens) and the camera around so that they are in good spots relative to the beam size.

Here is a photo of the way I left the table last Thursday. The notations in orange indicate what I need to do to make the actual table match my lens solution.

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