I posted on this very subject a year or two ago - I bought a SMC - M 50mm macro that had an hole bored into to the lens mount. When put on a Pz body, the matrix metering was activated. Some former owner of this lens did this and it took me by surprise when I noticed it. Here's a quick snap of the 50mm -
http://www.markcassino.com/temp/50macro.jpg the arrow points towards the home bored hole. Don;t ask me if it works or not - I don't know. I always use centerweighted or spot metering. - MCC At 07:00 AM 3/1/02 -0500, you wrote: >I was thinking recently that all Pentax lenses actually *need* in order to be >compatible with matrix metering is the correct pattern of terminal >insulators to >tell the camera their minimum and maximum apertures. They don't need the "A" >switch that activates shutter-preferred autoexposure just for matrix metering. >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" kens 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. Both my MZ-S and my PZ-1p acknowledge matrix metering when >selected. >Here's a sample shot I took with the PZ-1p a few days ago: >http://www.robertstech.com/temp/15mm-2.jpg >(Note: it's about 115 kb) > >Yes, there's quite a bit of flare, but I did shoot directly into the sun in >order to make the scene difficult to meter (and I didn't use any exposure >compensation or do any dramatic Photoshop manipulation: This is pretty >much what >you'd se if you projected this slide). > >Top that bit of trickery, Cotty! > >-- >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 . - - - - - - - - - - Mark Cassino Kalamazoo, MI [EMAIL PROTECTED] - - - - - - - - - - Photos: http://www.markcassino.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 .
