Diffraction determined by entrance pupil or exit pupil?

Started 1 month ago | Questions thread
Jack Hogan Veteran Member • Posts: 7,432
Re: Diffraction, Fourier and Focal Planes - Example

bclaff wrote:

For others trying to follow along here's another Optical Bench screenshot:

Note the highlighted values that correspond with Jack's work.
Note also the 2.67 pupil magnification reported which is Jack's 22.38mm / 8.37mm

Which is of course also equal to zi/f.

I circled an expected discrepancy. Because the pupil is slightly curved I report 22.74mm rather than the 22.38mm value.

So you calculate it from the edge of the virtual exit pupil as opposed to the relative plane?

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