I think the achilles heel of the FA 28-70/4 was actually the quality of the cement used to glue the elements together, rather than the elements themselves. Pentax has done a lot of lenses with AL since then, without repeating the mistake.
Jostein 2008/6/4 P. J. Alling <[EMAIL PROTECTED]>: > Interesting, the lens contains not one but two composite, aspherical > elements, the composite aspherical element was the achillies heel of the > smcp FA 28-70mm f4.0 an otherwise exemplary little lens. > > Dario Bonazza wrote: >> http://www.dpreview.com/news/0806/08060301pentax17-70sdm.asp >> >> > > > -- > 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. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- 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.
