Op Thu, 05 Jun 2008 22:07:24 +0200 schreef P. J. Alling <[EMAIL PROTECTED]>:
O.k., thanks. Interesting to know. Like you said, it is a very nice lens. -- Ciao, Lucas > 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... -- 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.
