Talk:Camera matrix

From Wikipedia, the free encyclopedia

[edit] "Focal point"?

This article mentions but does not define "focal point". I don't think this is the optics meaning. Does this article really mean the center of of the entrance pupil (which is often the principle point? —Ben FrantzDale (talk) 22:26, 9 May 2008 (UTC)

I'v added a wikilink to camera focal point (pinhole camera) which redirects to pinhole camera model where the camera focal point concept is defined: the entrance pupil of the pinhole camera. In the references that I have access to "pincipal point" is used to refer to the intersection of the optical axis and the image plane, not the entrance pupil. Which references are you using? --KYN (talk) 18:31, 11 May 2008 (UTC)