Re: [APML] Hypering Advice Lumicon 600

["Gerry Cichocki" <gcichocki@hotmail.com>]

Jim, thanks for sharing your experiences. Is anyone hypering at 30 deg/ 
15psi  for 3 days (supra 400 in canister)? Should that be my starting point 
or go with 6-7 hrs at 50 deg/ 3 psi as a start. Thank you, Gerry


>From: "Jim Janusz" <jjanusz@dc.rr.com>
>Reply-To: astro-photo@seds.org
>To: <astro-photo@seds.org>
>Subject: Re: [APML] Rookie Hypering Advice Lumicon 600
>Date: Thu, 6 Dec 2001 18:19:17 -0800
>
>OK Gerry, I'll take a shot at this.  All responses are my experiences.  See
>below.........
>
>----- Original Message -----
>From: "Gerry Cichocki" <gcichocki@hotmail.com>
>To: <astro-photo@seds.org>
>Sent: Thursday, December 06, 2001 12:09 PM
>Subject: [APML] Rookie Hypering Advice Lumicon 600
>
>
> > Hello, I just purchased a 600 hypering kit (50deg & 30 deg probes) & 
>using
> > the hand pump. I  am also near sea level.
> > I plan on hypering the film in the canister for now & will be using 
>Kodak
> > Supra 400 print film (which may be or is similar to royal gold 400). Any
>way
> > here are my questions:
> > 1) Lumicon mentions to hyper for 3days/ 15psi at 30 deg. But it looks 
>like
> > many of you are only doing 4-6 hrs at 3psi at 50 deg (in the canister).
> > Where do you reccommend starting. I'm aware of checking the density on
>test
> > rolls & will do that but I'm hoping someone already uses this film on a
>600
> > kit & may have a real world answer.
>
>I never hyper color film of any type at 50 C.  As a former lab owner in a
>desert community I have seen too many rolls of film ruined by heat.  The
>only color I hyper is 120 PPF and I do that at 30 degrees C for 12 hours
>after a minor pump down with a two stage pump.
>
>
>
> > 2) Do you just lay the film canister in the  empty chamber or lay it in
>(or
> > on) the  patterson spool inside the chamber.?
>
>When I did 35mm it was always in the cannister.  I never saw a problem of
>ineven hypering and it saved a lot of wear and tear on the film.
>
>
> > 3) when ready to remove the film after hypering do you need to slowly
> > release the pressure inside (via the center knob or valve) or not?
>
>Yes, via the valve if you can.  You can also pump the film down again and
>store it in the tank for later use if you want.  Keeps it dry.
>
> > 4) When someone mentions "outgassing" what do you mean?
>
>The film is oozing water in the form of vapor.  This drying process is the
>primary action of the hypering process other then the strange stuff 
>hydrogen
>does.
>
> > 5) I am very interested in hearing the exact procedures that you use. I
> > think some mentioned letting the film sit in a heated ( or unheated ?)
> > chamber for some time before introducing the final gas.
>
>For my color film I pump down the tank, fil it with gas and then bring it 
>to
>temp.  At that time I begin the timing.  It's that simple.  The one thing I
>can guarantee is that your system will perform slightly differently than
>mine or everyone elses and you just have to ecperiment.
>
>Jim
>
>
> >   Once again thank you in advance for your advice, Gerry
> >
> >
> >
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