It reminded me the movie about lens production presented by Canon. I believe the link was posted here about an year ago, but just in case:
http://www.canon.com/camera-museum/tech/l_plant/f_index.html Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.