[EMAIL PROTECTED] wrote: >In a message dated 02/03/02 03:34:59 GMT Standard Time, Mark Roberts writes: > ><< So...it shouldn't be too difficult to modify a K or M lens. > > With this in mind, I went to Boz's famous K-mount page, downloaded the > > diagrams of the "A" lens mount with the table that shows which switch contacts > > need to be shorted and which insulated in order to give the correct information > > for various min and max apertures. Then I made a template from a lens mount > > from a junked FA series lens, marked the appropriate spots on a standard "K" > > lens mount and set to work with a drill. I drilled about half way through the > > metal for each contact spot that needed to be insulated, filled in the resulting > > divot with epoxy and, viola! A pseudo A-mount! > > > > The only lens I've done this to so far is my K 15/3.5 but it seems to work > > just as planned. >> > >And you did this to a 15mm? ............................................you >are a braver man than I.
You overestimate my bravery. Had anything gone wrong I only would have had to replace the metal flange of the lens mount. Pentax can probably supply them new (as they still make the A15/3.5 and A20/2.8) but I'm betting buying an old M50/2.0 on eBay would be cheaper. >There is a guy named Roland Elliot who puts matrix metering chips "in" Nikon >manual focus lenses. Seems like Mark aims to rival or surpass this gent? > I am incredulous, but not taking the piss. No need to install a "chip" with the Pentax lens so I'm doing much simpler work than he. Did you look at the photo I posted? The metering did a nice job in a tricky situation. -- Mark Roberts www.robertstech.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
