Re: [APML] Pentax6x7

["August R. Orlandi" <walkabot@execpc.com>]

Jim,will you e-mail me this also.
Thanks
Augie

Jim Janusz wrote:

> Hi Dave, sure no problem. I'll shoot it this weekend and email it to you
> on Monday.
>
> I started with a design similar to Mark's (know him well but have not
> seen him in some years, how is he?) and moved to one made of aluminum.
>
> Jim
>
> David Kodama wrote:
> >
> > Jim,
> >
> > I'm interested in seeing your knife edge focuser
> > too.  Can you email me a copy also?  If you get
> > it to me before the end of next week, I'll put
> > it on my website for others to see also (after
> > that I'll be on a trip).
> >
> > I recently bought a knife edge focuser that
> > Mark Park (OCA) made for his Pentax 67.  It's
> > quite clever.  He used a Pentax cap (one that
> > protects the back end of a lens) to attach it
> > the scope in place of the camera.  I can also
> > post pictures of that one if anyone is interested.
> >
> > Dave Kodama
> >
> > --- Jim Janusz <jjanusz@ix.netcom.com> wrote:
> > > John,
> > >
> > > I can take some next week and Email them to you with
> > > a description if
> > > your interested.  Still don't have a web site.
> > >
> > > Jim
> > >
> > > John Gleason wrote:
> > > >
> > > > Jim I couldn't agree more with the knife edge
> > > approach.  I used that method
> > > > for my 4x5 plate camera.  By using a dial
> > > micrometer to make small
> > > > incremental changes, it is amazing to see that
> > > even at f/7 how critical
> > > > focus can be.  At focus, the star image
> > > "dissolves" across the knife edge at
> > > > the point of perfect focus.   Haven't had much
> > > problem with the 9x loupe on
> > > > the Pentax.  Do you have any photos to post of the
> > > knife edge focuser you
> > > > use with the Pentax?
> > > >
> > > > Cheers,
> > > >
> > > > John Gleason
> > > >
> > > > snip
> > >
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