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Exit pupil explanation
Hey Don,
Would you mind explaining what exit pupil is and how it relates to choosing an ideal eyepiece for a particular focal length?
I understand it is calculated as eyepiece focal length/ telescope Fratio.
What is an ideal exit pupil and what are the liabilities of violating it?
I see folks talking about exit pupil all the time in the CN eyepiece forum and I haven't really studied what it is and how important it is.
Greg.
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