May I jump at this opportunity to direct you to the page of "Photo articles by members of the PhotoForum mail list" at http://www.rit.edu/~andpph/pf/pdf-files.html Just the third archive from the top is about the "rule" of thirds. It is simple and intended to be practical. Don't really know how to apply to a cylindrical panoramic, but HTH anyway. BTW - contributions for the above page are encouraged. ===== _____________________ www.alberto-tirado.com __________________________________ Do you Yahoo!? Vote for the stars of Yahoo!'s next ad campaign! http://advision.webevents.yahoo.com/yahoo/votelifeengine/