I don't know, Pentax supposedly pioneered the technique. We can only hope they got it right eventually...
AlunFoto wrote: > 2008/6/4 P. J. Alling <[EMAIL PROTECTED]>: > >> The composite elements were a spherical glass component with an optical >> plastic having an "identical" diffraction index, molded to the glass >> component to form the aspheric element. The optical plastic was the >> glue... >> > > Thanks, I didn't know that. Do you think they've used different > techniques on other AL lenses? > > Jostein > > -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
