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Re: [APML] Black Negs a new developement
Hi Sean,
I don't agree, as the film is black to the edges. I don't think there is
anything that can do this during an exposure except a light leak of some
sort. If it were just over exposed it would only be in the frame of the
exposure.
Jim
----- Original Message -----
From: "Sean Walker" <vze2c3z8@verizon.net>
To: <astro-photo@seds.org>
Sent: Tuesday, December 11, 2001 3:21 PM
Subject: Re: [APML] Black Negs a new developement
> Thats your problemif you did long exposures. Hypered TP loves LP- it soaks
it
> up.
>
> Sean Walker
>
> Brian Sledz wrote:
>
> > Light Pollution??? oh yeah. 30 miles west of Chicago. Best nights mag
4.5
> > overhead, to the east mag 2, west mag 4.2ish. But I have new insights.
I
> > took e200 with the Lumicon h alpha filter last night. I went 40 30 and
20
> > minutes. I got a nice California nebula at f4 in only 20 minutes.
> > Brian
> > ----- Original Message -----
> > From: "Sean Walker" <vze2c3z8@mail.verizon.net>
> > To: <astro-photo@seds.org>
> > Sent: Tuesday, December 11, 2001 2:58 PM
> > Subject: Re: [APML] Black Negs a new developement
> >
> > > Arre you shooting this hypered techpan in light pollution?
> > >
> > > Sean Walker
> > >
> > > > From: "Brian Sledz" <brianhome@email.msn.com>
> > > > Reply-To: astro-photo@seds.org
> > > > Date: Tue, 11 Dec 2001 11:57:39 -0600
> > > > To: <astro-photo@seds.org>
> > > > Subject: Re: [APML] Black Negs a new developement
> > > >
> > > > Hi Jerry,
> > > > No but in this case it was 35mm, last week's black negs were 120
without
> > > > sprockets. ;-]
> > > > Brian
> > > > ----- Original Message -----
> > > > From: "Jerry Lodriguss" <jml@astropix.com>
> > > > To: <astro-photo@seds.org>
> > > > Sent: Monday, December 10, 2001 2:30 PM
> > > > Subject: Re: [APML] Black Negs a new developement
> > > >
> > > >
> > > >>
> > > >>>
> > > >>> Yep the negs are black out to the sprockets. But I used a
changing
> > bag
> > > > plus
> > > >>> a dark room this time. Light leak???? hmmm. I just got back some
> > e200 I
> > > >>> shot with same set up and they are ok. And I had the viewfinder
off
> > the
> > > >>> camera. So I doubt the 6x7 Pentax is leaking.
> > > >>
> > > >>
> > > >> 6x7 film doesn't have sprocket holes does it?
> > > >>
> > > >>
> > > >> Jerry
> > > >>
> > > >> Astrophotography, Tips and Techniques
> > > >> for Digital Enhancement in Photoshop:
> > > >> http://www.astropix.com
> > > >>
> > > >> -- APML Archives at <http://astro.umsystem.edu/apml/> ---
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> > > >>
> > > >
> > > >
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>
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