Stanford is incorrectly spelled, it should be STANFORD not STANDFORD. Guillermo
----- Original Message ----- From: "John Fisher" <photobu...@hotmail.com> > Would you check the URL? I have tried to open the site.But haven't had any > luck. thank you > > > >From: "Paul Prober" <pro...@silcom.com> > >Reply-To: pinhole-discussion@p at ??????? > > > > Chris Patton at Pinhole and beyond has a zone plate area. The site > >address > >is > >www.standford.edu/~cpatton/zp.html There is many zone plate "lens", plus > >formulas for focusing the lens to subject. > >Paul Prober
