Re: Astigmatism: RMS vs PV


"Michael Koch" <astroelectronic@xxxxxxxxxxx> wrote in message
news:fihnnj$oq5$01$1@xxxxxxxxxxxxxxxxxxxx
Hi,

let's suppose a wavefront has only astigmatism (Z4, Z5) and no other
aberrations. What's the ratio between RMS and PV in this case?


2*sqrt(6)


.

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