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... -- Ciao, Lucas -- 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.

