At the December 21st meeting Ron Streicher demonstrated that in its
native form Apple’s Photo Booth application mirrors (inverts left-for-
right) the images it captures from either an iSight or external web
camera. He then showed how to correct this problem using a procedure
he found on-line. When you do this, first make a copy of the Photo
Booth application, rename it “corrected version” and then perform the
procedure as described in the following article.
Following is the link
For reference, the URL is
http://www.macosxhints.com/article.php?story=20090125141307324