Bojidar Dimitrov <[EMAIL PROTECTED]> wrote: >"Anthony Farr" <[EMAIL PROTECTED]> wrote: > >>Coincidentally, I was reading Boz's pages last night, so I feel >> qualified to rain on your parade. At the introduction of the KA >> series lenses the movement of the diaphragm actuator was altered. > >Mark Roberts wrote: > >> Yes, I read through it all, but the linear/non-linear diaphragm >> control is only important if the camera is trying to set the >> position of the diaphragm (ie. Program or shutter-preferred >> autoexposure). For matrix metering it just needs to know what the >> mazimum and minimum possible apertures are. > >This is 100% correct. Congratulations Mark! I've been thinking of >doing the same to my pre-A lenses, but don't have the nerve or the >drilling setup to pull it through.
It's actually very easy to do. I made a cardboard template from a junk FA series lens I bought on eBay for $10.00. I'll make a permanent metal template later but the cardboard job was fine for one-time use. I'd prefer to use a drill press but an electric hand drill was not really a problem. BTW: The 15mm f3.5 is an awesome piece of glass! -- 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 .
