Re: Pyrocat-HD for alt printing?

Hi Victor,
I was told by the photographic guru of San Diego, Ca who is still teaching
at many years plus that the P-Cat oxidizes very quickly in the brown bottles
and the bottles are the worst thing put upon the public. He says thta the
Coca -cola clear bottles are better and the glass are fine (brown) if kept
in a dim area.
I have had problems with the P-Cat and will change back to Pyro which I know
won't oxidize in 2 months. The important thing is to keep the bottles topped
up- or; transfer to smaller bottles (if you have them).
Hope this helps,
Susan
----- Original Message -----
From: "Victor Loverro" <victor.loverro@verizon.net>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Tuesday, August 16, 2005 9:00 AM
Subject: Re: Pyrocat-HD for alt printing?

Susan,
  Could you elaborate on the different containers? I always thought that
the brown bottles were supposed to help prevent oxidation of chemicals.
Glass being better than plastic to keep oxygen out and the brown for light.
             Victor

----- Original Message -----
From: "Susan Huber" <shuber@ssisland.com>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Tuesday, August 16, 2005 5:18 AM
Subject: Re: Pyrocat-HD for alt printing?

> Hi Loris,
> I believe the P-Cat takes less time to print out than the Pyro al
Hutchens.
> The thing that is troublesome is; the P-Cat oxidizes very quickly compared
> to the Pyro and that being in different containers. The brown bottles are
> the worst! Use other bottles. I am not amused at travelling 9,000 kms and
> then ruining some of my negatives... Sandy King can clarify.
> Always,
> Susan
>
> ----- Original Message -----
> From: "Loris Medici" <loris_medici@mynet.com>
> To: <alt-photo-process-l@sask.usask.ca>
> Sent: Tuesday, August 16, 2005 12:17 AM
> Subject: RE: Pyrocat-HD for alt printing?
>
>
> Donald, I haven't used Pyrocat-HD for alt. processes yet (because I use
> digital negatives, not in-camera negatives) but on every publication or
> article I've read it was said that pyro stained negatives takes longer
> to print - because the color is much more opaque to UV light (even if it
> seems very thin to you). In your case the exposure takes around 2 stops
> longer, I'm sure there will be pyro in-camera negative users that will
> approve/disapprove this difference.
>
> Regards,
> Loris.
>
> -----Original Message-----
> From: donald ciccone [mailto:dsciccone@verizon.net]
> Sent: 16 Ağustos 2005 Salı 06:55
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: Pyrocat-HD for alt printing?
>
>
> ... I recently tried making a Vandyke
> (brown) print but found my exposure times were very long (30 minutes or
> more). The UV source is a bank of 18 inch blacklight bulbs ("350
> Blacklight" by Sylvania). I have used the same printer with non-pyro
> negatives and typically get exposure times for Vandyke prints in the 5-8
>
> minute range. Ideally, I would like to get more reasonable exposure
> times
> for pyro-developed negatives as well (possibly 10-15 minutes). Any
> suggestions how to achieve this or do these negatives simply require a
> stronger/different UV source? The pyro negatives do not appear dense or
>
> blocked up when viewed on a light box. Thanks for any assistance.
>
>
Received on Wed Aug 17 06:22:25 2005