[APML] Pentax 6X7

["Jim Janusz" <jjanusz@ix.netcom.com>]

 Dean,

 I agree with Rick.  Although I have used a 67 for many shots I have
recently
 tested a 6x9 Graflex back that attaches to my 4x5 camera set up.  It is
 basically vignetting free. see this link:

 http://www.geocities.com/palmdesertratx/Page-New-16.html

 Jim

> ----- Original Message -----
> From: "Rick Thurmond" <thurmond@saber.net>
> To: <astro-photo@seds.org>
> Sent: Wednesday, October 31, 2001 2:14 PM
> Subject: Re: [APML] Pentax 6X7
>
>
> > Dean,
> > In my opinion you don't need much of what a camera offers, only
> > something to hold the film.  My camera is a Graflex 120 back attached to
> > a plate with a ring that attaches to my Lumicon Giant Easy Guider.
> > There is a picture of it at
> > http://www.saber.net/~thurmond/astroequip.html
> >
> > There is no vignetting at all in this system.  The whole image the
> > telescope produces is captured on the film, though it is not all usable.
> >
> > I have a separate focuser built around a ronchi grating.  With no
> > shutter, I use a large piece of plastic to start and end the exposure.
> > I cover the scope, pull out the dark slide, and uncover.
> >
> > I might start building and selling these cameras if there is any
> > interest.
> >
> > --Rick
> >
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