Yes, The registration distance for Canon FD is too "short" with the original FD mount still attached. Seems what Collin is proposing is hacking off the original mount so infinity focus may still be possible with a Pentax K or M42 adapter/mount installed if enough of the original mount is/can be hacked off. jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Maas Sent: Sunday, February 11, 2007 2:28 AM To: Pentax-Discuss Mail List Subject: Re: Today's heresy Say goodbye to infinity focus. The reason that FD stuff is cheap is that the register on FD is short (~42mm) and it won't reach infinity focus without optics on any DSLR mount other than 4/3rds. Ditto for Konica AR and Minolta MD mounts (Man, I'd love a Hexanon AR 57/1.2 on a 1.5x crop DSLR, if it was possible). -Adam Collin R Brendemuehl wrote: > I'm about to propose a heresy. > Nothing that G K Chesterton or Cornelius Plantinga would write about, > but heresy never the less. > > It's come to my attention that a lot of old FD mount lenses are going > pretty cheap. And the breech system attached to the > outside of the body, not really internal .... soo > Remove the mount from an old Canon body and fuse it to a screw-mount > adapter and voila -- a Canon-> Pentax adapter. > Then just remove the aperture coupling from the lens. > > Next time I find an old FD body and lens that's worthless, I may give > it a try. (I just saw an old Canon 300/4.5 going > for a modest price and this idea entered my mind ...) > > Yes, it is heresy. But can I be cleansed? Somebody help me ... I've > fallen. (Or is this a heresy/project better suited to Cotty?) > > > > > Sincerely, > > Collin Brendemuehl > http://www.brendemuehl.net http://evangelicalperspective.blogspot.com > http://philosophyforchristians.blogspot.com > > "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 -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
