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Re: [APML] Black Negs a new developement
Thanks Jim.
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.
The d19 is fresh batch. I make about a quart at a time and keep only for a
few weeks. The stuff is so cheap I don't see saving it.
I will think more about the light leak.
thank you again
Brian
----- Original Message -----
From: "Jim Janusz" <jjanusz@dc.rr.com>
To: <astro-photo@seds.org>
Sent: Monday, December 10, 2001 12:12 PM
Subject: Re: [APML] Black Negs a new developement
> Brian,
>
> Are the negatives black out to the sprocket holes? If they are, you are
> likely dealing with a light leak during pre/post handling or exposure.
> Particularly if your daytime shots were ok then you must be getting some
> type of light leak. 30 to 60 minutes at f4 should not over expose TP to
the
> point of being totally black. If you have black on just the camera frame
> area, not the sprocket holes, you may have to cover the viewfinder of your
> camera during exposure as they have been known to leak.
>
> I would concentrate on finding a source of light during exposure.
>
> Oh, how about your D19 how did you mix it? Full 1 gal. batch or less?
>
> Jim
> ----- Original Message -----
> From: "Brian Sledz" <brianhome@email.msn.com>
> To: <astro-photo@seds.org>
> Sent: Monday, December 10, 2001 8:15 AM
> Subject: Re: [APML] Black Negs a new developement
>
>
> > Hello Again,
> > I seem to have no luck developing Lumicon hypered tech pan. I took 4
more
> > TP shots Saturday night, none came out. I have not had any astro shots
> come
> > out. Four tries now and all sessions black negs. I am thinking I
should
> > only be going 4-6 mins in d19? I went 8 minutes on Saturday night and
all
> > black negs again.
> > I took daytime shots used the same developer for 8 minutes and the shots
> > came out.
> > At first I kept trying to blame something else, but it must be the
> hypering
> > developing combo ain't a workin. These exposures Saturday were Halpha
> > filter, Pentax SDUF II @f4, 35mm TP 30-60 minutes.
> > Any tips?
> > thank very much
> > Brian
> > ----- Original Message -----
> > From: "Brian Sledz" <brianhome@email.msn.com>
> > To: <astro-photo@seds.org>
> > Sent: Wednesday, November 21, 2001 10:32 AM
> > Subject: Re: [APML] Black Negs
> >
> >
> > > Hi Chuck and Kirk,
> > > Yes the whole strip was black. I had to hold it on a halogen light to
> see
> > > one spot where the image ended and there was a space. I didn't think
> the
> > > age would matter.
> > > Back to the drawing board.
> > > Happy Thanksgiving
> > > Brian
> > > ----- Original Message -----
> > > From: <KGKIRKLEY@aol.com>
> > > To: <astro-photo@seds.org>
> > > Sent: Wednesday, November 21, 2001 8:00 AM
> > > Subject: Re: [APML] Black Negs
> > >
> > >
> > > >
> > > > In a message dated 11/21/01 7:29:23 AM, brianhome@email.msn.com
> writes:
> > > >
> > > > >Hello,
> > > > >
> > > > >I shot some Lumicon Hypered Tech Pan with an Halpha filter the
other
> > > night.
> > > > >
> > > > >It was in the frig for about 6 months. I developed in d19 68o for
10
> > > > >
> > > > >minutes. I shot Gamma Cyg for an hour at f6.7. The whole roll was
> > > black.
> > > > >
> > > > >I used brand new d19.
> > > > >
> > > > >Could the age of the TP do it?
> > > > >
> > > > >just when I thought film was easier than ccd....
> > > > >
> > > > >thank you
> > > > >
> > > > >Brian
> > > >
> > > > Brian:
> > > > You say the whole roll was "black".
> > > > Are you saying the film itself is black; ie. the negative??
> > > > If this is the case, the film was somewhow exposed to light.
> > > > Are all parts of the roll black; ie. leader area, sprocket hole
> area???
> > > > Usually six months in the fridge (freezer is better) would not cause
> > this.
> > > > Moisture will cause fogging, but will not make the whole roll
totally
> > > black.
> > > > Kent Kirkley
> > > >
> > > >
> > > >
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> > > >
> > >
> > >
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> > >
> >
> >
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> >
>
>
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