I'm fairly sure the conversion is missing the most important point of the difference between A lenses, and earlier lenses; which is that the stop-down coupler acts linearly rather than non-linearly! The electrical contact is merely a way for the lens to tell the camera that a linear-stop-down type lens is attached. The conversion is thus just lying to the camera - as far as I know anyway.
Eric. On 17 February 2011 20:46, Steven Desjardins <[email protected]> wrote: > I have a K 28 and it's tempting to try to make it into a nice A type > normal lens. Given the source of the article, however, maybe I should > resist temptation ;-) > > On Thu, Feb 17, 2011 at 1:03 PM, Collin Brendemuehl > <[email protected]> wrote: >> http://evangelicalperspective.blogspot.com/2011/02/converting-lens-to-pentax-mount.html >> >> Works for me. >> Hope you find it useful as well. >> >> >> >> Sincerely, >> >> Collin Brendemuehl >> >> "He is no fool who gives what he cannot keep to gain what he cannot lose" >> -- Jim Elliott >> >> >> >> >> >> >> -- >> 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. >> > > > > -- > Steve Desjardins > > -- > 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. > -- Eric -- 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.

