----- Original Message ----- From: <tatico...@starmedia.com> > Hello all! > I'm brazilian and I have just started to try pinhole and I can't understand what is zone plate,I've read about this in English but I didn't understand what's this! Can anybody help me?! > Thanks
Check Joao Riveiro's article written in Portuguese: http://www.alaz.f2s.com/tec/tec1.html Guillermo
