Developer: fine grain

Here nan interesting discussion about „fine grain“ devs:

Hi! here it is 🙂      

AGFA 12 FINE-GRAIN TANK DEVELOPER

This fine-grain formula keeps well and makes an excellent tank developer


Hot Water (125 F. or 52 C)
Agfa Metol 8 grams
Agfa Sodium Sulphite, anhydrous. .. 125 grams
Agfa Sodium Carbonate, monohydrated.  5.75 grams
Agfa Potassium Bromide 2.5 grams
Water to make  1 Liter.
Do not dilute for use. Develop 8 to 12 minutes at 65 F/(18 C.).

And a comment from (I think Rüdiger):

O.K. Fine grain is due to the high content of sodium sulfite (solving developer).


Potassium Bromide seems to be a little high. This may eat quite a lot of sensitivity 1 gramm up to one stop. Modern emulsions don’t need that much – if any.


I work with a much simpler bath that Barry Thornton made for new emulsions. It is a two-bath basically


Bath A:

6.5 g metol, 80 g sodium sulfite to 1 litre.

Bath B:

20 g of sodium metaborate to 1 litre


You „charge“ the emulsion in bath A with initial inversion 1 minute, then once per minute.

Then change to bath B without watering in between.

Initial inversion only once (in order not to wash out the developer) and also once per minute.


The good thing about is: Every  ISO 100 film need 4 minutes in each bath and every ISO 400 film 5 minutes.
The developer is good for 10 to 15 rolls.


Very good highlight balancing due to two-bath (developer gets exhausted in the highlights). Fine grain and sharp.You get at least box speed, if not 1/3 to 1/2 f-stop on top.

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