Hi guys,
I'm making and using this developer. I also running on line store with photographic chemistry and many of our customers are using this.
I personally use this with agitation, and never tried for stand development. My dilutions are 1+60 and average development times with agitation about 20 mins.
The developer is very long lasting - stock solution is similar to Rodinal in terms of shelf life, and this is basically a good reason to make it - glycin itself will detariorate much much faster.
If somebody goes to make it, do it in a quantity minimum 300ml of stock. You are free to use anhy carbonate, and be sure to take half of the sulfite amount, because the amount in the recipe is given for hydrate.
The preparation is the following:
1. Heat up distilled water with sulfite up to 95-98C. Try to dissolve it completely.
2. Then put glycin into this hot solution, stirr well for a minute or so - glycin will go into this solution very well and completely. At this point you should have very heave cream like solution.
3. Heat up to 95-98C again.
4. Then add very small amount of potassium carbonate ad stirr it - be carefull carbon dioxide will form and you will have a lot of foam.... so stirr it fast and prevent it from going out of the glass. Then add another small mount of carbonate and repeat he procedure until carbonate will not cause foam (it will happen after ~10% of carbonate added).
Then put the rest of carbonate and stirr until it dissolve. The solution will become "more liquid".
Let it cool.
Shake very well and long before use.
You may use very old stock of glycin (take it 5-10% more if it dark in color) - this will not stain the film emulsion. Or even it does - it is ok.
The developer is usefull for paper also(at 1+10), but you need to have fresh glycin because of staining of brown one.
To my mind this is one of the best tonality developer, but it give it most in the midtones, but not in shadows and highlights.
