[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [APML] Medium format cameras
I have dine a number of images with the Pentax lenses, you can find quite a
few here.
http://www.astroimager.net/Page-2C-1.html
Jim
----- Original Message -----
From: "Steve Walters" <s-walters@comcast.net>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Sunday, November 09, 2003 4:56 AM
Subject: Re: [APML] Medium format cameras
> Dean,
>
> I've not done any widefields with the Pentax lenses myself but there are
> plenty of excellent results using them. Besides John's work, two others
come
> to mind:
>
> Matt BenDaniel at http://starmatt.com/
> Kirk Rogers at http://www.kiroastro.com/
>
> Between these sites, I think you can see photos taken with every 67 lens
> available. As I mentioned earlier, the 67 lenses do not vignette due to
> their optical design.
>
> Clear skies!
>
> Steve...
>
> ----- Original Message -----
> From: "Dean Jacobsen" <deanjacobsen@earthlink.net>
> To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
> Sent: Saturday, November 08, 2003 11:20 PM
> Subject: Re: [APML] Medium format cameras
>
>
> > Steve, do you have any experience with the Pentax 67 and the Pentax
> > lenses? What started me down this road was some of John Gleason's wide
> > field photos of the Milky Way with the 105mm and 165mm lenses.
> >
> > Dean Jacobsen
> > www.astrophoto.met
> >
> > At 09:48 PM 11/8/2003 -0500, you wrote:
> > >The Pentax 6x7 vignettes all by itself. It is meant to use with camera
> lens
> > >designs in which the final lens elements are enlarging the light cone
> much
> > >as a barlow does. The 6x7 lens mount does not allow full illumination
of
> the
> > >film when most telescopes such as refractors or refractors are used.
> > >
> > >This was one reason I abandoned the 6x7 for the Mitsuboshi system.
> > >
> > >Steve...
> > >
> > >----- Original Message -----
> > >From: "Phillip Jones" <starfest@comcast.net>
> > >To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
> > >Sent: Saturday, November 08, 2003 8:25 PM
> > >Subject: Re: [APML] Medium format cameras (was:Tak. FSQ-106 for
> > >mediumformatfilm?)
> > >
> > >
> > > > Alan,
> > > >
> > > > I should probably add that the focuser on the FS-102 is a 2.7"
> focuser,
> > > > which was designed for 6x4.5 medium format. My understanding is the
> Pentax
> > > > 6x7 is too large for the 2.7" focuser, which is why there is not a
> Pentax
> > > > 6x7 adapter available for the .2.7" focuser sized FS series
> refractors.
> > > >
> > > > However, you might consider getting the 6x7 for piggyback
photography
> for
> > > > now, and hang onto it in the event you get a 4" focuser refractor in
> the
> > > > future.
> > > >
> > > > -Phil
> > > >
> > > > ----- Original Message -----
> > > > From: "Alan Voetsch" <critter12952@yahoo.com>
> > > > To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
> > > > Sent: Saturday, November 08, 2003 2:25 PM
> > > > Subject: [APML] Medium format cameras (was:Tak. FSQ-106 for medium
> > > > formatfilm?)
> > > >
> > > >
> > > > > Hey all,
> > > > >
> > > > > The discussion between Dean and Kirk has gotten me thinking about
> > > > > moving up to a medium format camera. Actually I've thought about
it
> > > > > many times, but I only now have an instrument that can utilize MF.
> The
> > > > > Tak FS-102 will be able to handle that format and once I'm
> comfortable
> > > > > with it and the new G-11 with Gemini, I would consider trying a
> bigger
> > > > > format camera.
> > > > >
> > > > > What I would like to know is if anyone has a tutorial, or such on
> their
> > > > > website regarding this. Or barring that, can anyone give any
> pointers
> > > > > on what to look for in such a camera. The reason I ask is that I
saw
> > > > > one advertised on astromart last week that had a purge system
> already
> > > > > installed. This camera had been used on a 102 and I assume that
the
> > > > > user knew what he was doing. My assumption has always been that a
> > > > > camera body is basically just a film holder. I'll qualify that by
> > > > > saying that I would probably also use it for piggyback shots.
> > > > >
> > > > > All things being equal, is the camera manufacturer important here?
> Are
> > > > > there certain things to look for? To avoid? Is a Pentax 67 the
wise
> > > > > choice in the long run?
> > > > >
> > > > > What I really want is to be pushed in the right direction so when
I
> do
> > > > > have the cash for such a purchase, I hace done my homework and can
> jump
> > > > > on it then without screwing up. At that point, I would like to
know
> of
> > > > > any adapters, etc... that would be necessary. Any guidance would
be
> > > > > much appreciated.
> > > > >
> > > > > Thanks,
> > > > > Alan
> > > > >
> > > > >
> > > > > __________________________________
> > > > > Do you Yahoo!?
> > > > > Protect your identity with Yahoo! Mail AddressGuard
> > > > > http://antispam.yahoo.com/whatsnewfree
> > > > > _______________________________________________
> > > > > Astro-Photo mailing list
> > > > > Astro-Photo@seds.org
> > > > > http://seds.org/mailman/listinfo/astro-photo
> > > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Astro-Photo mailing list
> > > > Astro-Photo@seds.org
> > > > http://seds.org/mailman/listinfo/astro-photo
> > >
> > >_______________________________________________
> > >Astro-Photo mailing list
> > >Astro-Photo@seds.org
> > >http://seds.org/mailman/listinfo/astro-photo
> >
> >
> > _______________________________________________
> > Astro-Photo mailing list
> > Astro-Photo@seds.org
> > http://seds.org/mailman/listinfo/astro-photo
>
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo
_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo