I don't know personally, however the word from people who tried to get these repaired by Pentax was that the aspheric lens had delaminated and couldn't be repaired no parts were available, a cemented group could be repaired, but it might not be economically feasible slight difference. It seems that a while ago more of the aspheric elements were found and the lenses could be repaired, I was able to purchase a re-manufactured copy, for about what the price of repair would have been.
Lucas Rijnders wrote: > Op Wed, 04 Jun 2008 18:52:43 +0200 schreef 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 >>> > > Are you sure it was the composite AL element that comes loose on some > 28-70's? There seem to be two groups of two cemented elements in this > lens: http://bdimitrov.de/kmp/lenses/zooms/_optics/28-70f4.gif. It could > be one of those... > > -- 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.
