Paul Verizzo
Member
Well, once again everything we knew was only partially correct.
I have never used stand development, partly because I suffer from the American syndrome of "I want it NOW!" Then, a few days ago - the DOH! moment - I realized that if I want the best possible negs, what's an hour? So, motivated by high definition formulas I mixed up:
1.6 g Metol
30 g Sodium sulfite
pH, 8.6
Bath temperature typically 83 degrees, ambient.
I first tried using it as a Bath A and then with a pH 11 Bath B. The negs were nice, the grain sucked. Well, that made sense after the fact.
So I just tried it with my box EI test neg snips as a one hour soak, inverting once. The TMY and Foma 100 were too dense and that Forte 400, unreactive as it always is, a bit too thin. But good detail, "no" grain with a 15X magnifier.
I diluted the juice by 50% and added sulfite to keep it the same. Very nice, the TMY and Foma looking close to perfect.
I decided to add some phenidone to get more shadow detail. Even though I would be using the same amount as the Metol, I knew that it would effect only shadow areas and would not add to the midtones or highlights.
Figuring the juice would now be more virile, I decided on a twenty minute soak. Agitate a few seconds, rap the tank, invert at ten minutes. Well, waddya know? Definitely less shadow detail than the metol only for an hour.
And then I thought, oh what the hell, let's try a two hour soak! More fog, as might be expected, but not anything to be concerned about. The three films were much more similar than with shorter soaks, although each was still unique. The Foma 100, a very reactive film, was pretty dense. The TMy was Red Riding Hood "Just right," and the Forte still bringing up the density rear but very nice.
In summary, 1) I doubt if there really is such a thing as "development to completion." A little bit more develops, even in the highlights, with more time. Certainly less change with each additional time segment.
2) The toe characteristics, I'm thinking, become obvious. More or less Zone I-II detail accordingly.
3) The TMY-2 seems made for this. The test neg has a Zone 0 shadow spot through bright white clouds. The lower zone shadows are well developed and the clouds are well differentiated.
4) Different dilutions and different times give decidedly different results.
5) I need to run different EI's to see the results. I expect to see a wide range of compensation.
6) Contrary to all the dire predictions about bromide drag and uneven development, they were not issues. At all. I presume this is due to the very dilute formula.
Note that I'm not so much after the perfect negative as I am obtaining high quality negatives under a wide range of conditions. Think roll film, street shooting.
I will probably dilute by 50% once again. What the heck, it's only time....
I will probably also try a several minute soak in the stuff and then finish development in maybe a pH 9 bath.
I have never used stand development, partly because I suffer from the American syndrome of "I want it NOW!" Then, a few days ago - the DOH! moment - I realized that if I want the best possible negs, what's an hour? So, motivated by high definition formulas I mixed up:
1.6 g Metol
30 g Sodium sulfite
pH, 8.6
Bath temperature typically 83 degrees, ambient.
I first tried using it as a Bath A and then with a pH 11 Bath B. The negs were nice, the grain sucked. Well, that made sense after the fact.
So I just tried it with my box EI test neg snips as a one hour soak, inverting once. The TMY and Foma 100 were too dense and that Forte 400, unreactive as it always is, a bit too thin. But good detail, "no" grain with a 15X magnifier.
I diluted the juice by 50% and added sulfite to keep it the same. Very nice, the TMY and Foma looking close to perfect.
I decided to add some phenidone to get more shadow detail. Even though I would be using the same amount as the Metol, I knew that it would effect only shadow areas and would not add to the midtones or highlights.
Figuring the juice would now be more virile, I decided on a twenty minute soak. Agitate a few seconds, rap the tank, invert at ten minutes. Well, waddya know? Definitely less shadow detail than the metol only for an hour.
And then I thought, oh what the hell, let's try a two hour soak! More fog, as might be expected, but not anything to be concerned about. The three films were much more similar than with shorter soaks, although each was still unique. The Foma 100, a very reactive film, was pretty dense. The TMy was Red Riding Hood "Just right," and the Forte still bringing up the density rear but very nice.
In summary, 1) I doubt if there really is such a thing as "development to completion." A little bit more develops, even in the highlights, with more time. Certainly less change with each additional time segment.
2) The toe characteristics, I'm thinking, become obvious. More or less Zone I-II detail accordingly.
3) The TMY-2 seems made for this. The test neg has a Zone 0 shadow spot through bright white clouds. The lower zone shadows are well developed and the clouds are well differentiated.
4) Different dilutions and different times give decidedly different results.
5) I need to run different EI's to see the results. I expect to see a wide range of compensation.
6) Contrary to all the dire predictions about bromide drag and uneven development, they were not issues. At all. I presume this is due to the very dilute formula.
Note that I'm not so much after the perfect negative as I am obtaining high quality negatives under a wide range of conditions. Think roll film, street shooting.
I will probably dilute by 50% once again. What the heck, it's only time....
I will probably also try a several minute soak in the stuff and then finish development in maybe a pH 9 bath.
So I'm learning from you.
