Nice. Nice idea too. I will have to save you post in case I ever get a modern camera.
Ciao, Graywolf ---------------------------------------------------------------- ----- Original Message ----- From: Mark Roberts <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, March 01, 2002 7:00 AM Subject: Matrix metering with "K" and "M" lenses > 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 . - 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 .
