Rick's Exit Pupil Tutorial

Fellow Binocular Observers,

If you were at all confused by the recent discussion of exit pupil illumination by Ed, Rick, Alan, Kenny and myself, make sure to read Rick Shaffer's first 'Wild Card' column in the articles section of AM. (Even if you are certain you understand exit pupils, I can almost guarantee that you will learn something new - I know I did).

I want to be the first to thank Rick for sharing his easily understood tutorial on this important subject. In particular, his optical path diagram that traces rays from the objective through the image plane and on out the exit pupil is what originally "showed me the light" in Rick's book.

We should all feel privileged to have Rick, who is also an avid binocular observer, in our corner.

Clear Skies,
Milt

Milt,

Thanks for the pointer, and especially, thanks to Rick for the fine article. I had gone back to Sam Browns "All About Telescopes," trying to gain these insights, but Rick's article is better and more to the point of recent discussions.

Alan