titrisol
Bottom Feeder
Frank, look in the unlinkingeye article about Appreciating Rodinal
I've tried the 1+50 + VitaminC and it is really good with EFKE100.
Will try it on FP4 soon.
From the article
A lot of photographers add sulfite to Rodinal to reduce the grain--a practice I always thought defeated the purpose of using Rodinal to begin with. Patrick Gainer writes: “It turns out that 4 g/l sodium ascorbate does a lot of good added to 1:50 Rodinal. A lot better than 100 g/l of sulfite.” Those who are searching for a fine-grain version of Rodinal should give this a try. (Please note: you should add sodium ascorbate, not ascorbic acid, because ascorbic acid will radically reduce the alkalinity of the Rodinal solution. Ascorbic acid is easily converted to sodium ascorbate by the addition of baking soda (in the ratio of the molecular weight of the acid over the bicarbinate, which is 176/84--approximately 2 parts acid to 1 part bicarbonate) or sodium hydroxide (in the ratio of the molecular weight of the acid to the hydroxide, which is 176/40, or 4 parts acid to 1.1 parts sodium hydroxide) . If you use the baking soda, add it to the ascorbic acid in a little water and let the fizzing subside before adding it to the working solution.)
I've tried the 1+50 + VitaminC and it is really good with EFKE100.
Will try it on FP4 soon.
From the article
A lot of photographers add sulfite to Rodinal to reduce the grain--a practice I always thought defeated the purpose of using Rodinal to begin with. Patrick Gainer writes: “It turns out that 4 g/l sodium ascorbate does a lot of good added to 1:50 Rodinal. A lot better than 100 g/l of sulfite.” Those who are searching for a fine-grain version of Rodinal should give this a try. (Please note: you should add sodium ascorbate, not ascorbic acid, because ascorbic acid will radically reduce the alkalinity of the Rodinal solution. Ascorbic acid is easily converted to sodium ascorbate by the addition of baking soda (in the ratio of the molecular weight of the acid over the bicarbinate, which is 176/84--approximately 2 parts acid to 1 part bicarbonate) or sodium hydroxide (in the ratio of the molecular weight of the acid to the hydroxide, which is 176/40, or 4 parts acid to 1.1 parts sodium hydroxide) . If you use the baking soda, add it to the ascorbic acid in a little water and let the fizzing subside before adding it to the working solution.)
FPjohn said:Hello:
I was never able to achieve pleasing results with Rodinol at 1:25 with HP5, Plus x or FP4. At 1:50 dilution, grain is always present with these films but unobtrusive, at least to me, while HP5+ becomes very accepting of exposure variation with a slight loss of deep shadow detail.
yours
Frank
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