Talk:Exit pupil

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[edit] Small update

Formatted the article and added a small section on relative brightness. This article may need a picture showing the lens on a camera... I would add one except I need my camera to photograph the lens and the lens is firmly attached to the camera... I tried a mirror but I'm just not steady enough. Also an equation relating the f-number to the focal length and the objective lens to the magnification would be a good addition except I'm not sure of the standard symbols for each. -- Bob-505 00:22, 8 June 2006 (UTC)

I took out the bit on relative brightness, as it was manifestly untrue for camera lenses, and was covered sort of already in the section on direct-observation instruments. I'm not sure what you have in mind with camera lenses; the exit pupil size and position are not functions of focal length and f-number, but more complicated. Dicklyon 07:20, 1 August 2006 (UTC)

[edit] Diagram

Perhaps someone can fire up Inkscape and draw a diagram? Shinobu 23:15, 6 May 2007 (UTC)

[edit] Merge

I propose that Ramsden disc be merged with this article. There is no reason for an archaic term for a thing to have an article of its own, separate from the article on the thing itself. This is especially true for technical topics.--Srleffler (talk) 01:59, 20 March 2008 (UTC)

Since there was no objection, I went ahead with the merge. I think this article is much improved—there was some good material in the Ramsden disc article.--Srleffler (talk) 04:19, 12 May 2008 (UTC)