[pure-silver] Re: Adding Pot Bromife to PC-TEA
- From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
- To: "'pure-silver@xxxxxxxxxxxxx'" <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 4 Jan 2005 12:22:46 -0500
I was testing a new lens on one of my Nikons. The film was 35mm Eastman 5231
ISO 80 rated at an EI of 125 and developed in the following developer (diluted)
1+49 for 8 minutes at 22 C.
Propylene glycol ....................... 50.0 ml
Triethanolamine ........................ 50.0 ml
Ascorbic acid .......................... 9.0 g
Dimezone-S ............................. 0.3 g
Potassium bromide ...................... 0.25 g
Without the bromide there was an objectionable amount of fog and it was
difficult to obtain sufficient contrast without too much density.
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-bounce@xxxxxxxxxxxxx]
On Behalf Of John Black
Sent: Tuesday, January 04, 2005 12:06 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: Adding Pot Bromife to PC-TEA
> I made some prints last night from the negatives developed in a
> modified
version
> of the Gainer developer mentioned in yesterday's post. Fog is nil,
contrast is
> just what I wish, and the grain is very fine. I use a 1:1 mixture of
propylene
> glycol and TEA as the solvent for the concentrate.
>
> Jerry
What format are you using? The fog and grain I see with Gainer's formulas are
most objectionable in 35mm. Rollfilm and especially LF negatives are much
harder to fog and grain is not an issue so I would agree that G's developers
would be fine for them, but then so would Rodial.
JB
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