Are We Really Stuck With Ilford MGFB? Where Are the Magic Papers of the Past?

chuckroast said:

I do this regularly ... turn Dektol into 130

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I’m not following. What I mean is can the image characteristics of Ansco 130 be replicated by D-72 / Dektol with added KBr but no glycin. Just an experiment. Of course any results might be paper-dependent.

Milpool said:

I’m not following. What I mean is can the image characteristics of Ansco 130 be replicated by D-72 / Dektol with added KBr but no glycin. Just an experiment. Of course any results might be paper-dependent.

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I mean I true up the chemistry to turn Dektol into a very close approximation of A130 and this includes adding glycin. I add the chemicals in the amounts shown in the right column to 710ml of heated Dektol. When dissolved, I add water to make 1l total stock. The 710ml figure was computed to make sure the metol levels match so none need be added and the rest of the component weights were calculated accordingly:



I did this because I have a lot of prepackaged Dektol here and wanted to use it up. The only thing that might vary from D-72 are the sequestering agents not found inf D-72. I am taking the leap of faith that Dektol and D-72 are the same and the sequestering agents don't matter for this purpose.

It's like making pancakes. You can make them all kinds of ways and still call it a pancake; doesn't mean they'll taste the same. If you want blueberry pancakes you have to add blueberries. If you want 130, you have to use glycin. Dektol plus KBr just gives you ordinary Dektol with a little more restrainer in it. But I see Chuck has just clarified the question himself.

DREW WILEY said:

It's like making pancakes. You can make them all kinds of ways and still call it a pancake; doesn't mean they'll taste the same. If you want blueberry pancakes you have to add blueberries. If you want 130, you have to use glycin. Dektol plus KBr just gives you ordinary Dektol with a little more restrainer in it. But I see Chuck has just clarified the question himself.

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Just reposted in #302 above.

I can provide the actual spreadsheet in anyone wants to fiddle the numbers themselves.