Bonderer
If you’re too stingy, it can come back to haunt you when developing film. Here are a few examples from old data sheets, back when they still deserved the name.
Agfa Rodinal, 10 ml concentrate for one 35mm or 120 film
Ilford when used as a single-use developer, with dilution of 1+1 or 1+3
ID 11 and Microphen, 100 ml stock solution each for one 35mm or 120 film
Perceptol 200 ml stock solution for one 35mm or 120 film
Kodak D 76 when used as a single-use developer
Kodak took a different approach, using so-called FE (film units).
A 36-exposure roll film has 3.5 FE, a 120 roll film 3.0
Sheet films: 9×12 cm = 0.8 FE, 13×18 cm = 1.9 FE, 18×24 cm = 3.6 FE, 4×5 inch = 1.1 FE and 8×10 inch = 4.2 FE.
One litre of D 76 stock solution can develop 15 FE film units; at dilution 1+1 in 2 litres of working solution, this also yields only 15 FE.
All information taken from the manufacturers’ data sheets.
Gucker
The information on Kodak D-76 matches what Anchell writes: for each roll of 35mm film, use at least 250 ml undiluted, or 500 ml at a 1:1 ratio, or 1 litre (!) at a 1:3 ratio. For consistent results, use it once and dispose of it properly.
I really like his statement: “Saving on developer is penny wise and pound foolish.” – I hadn’t come across that saying before.
HenningH
In the 2002 D-76 data sheet, Kodak states:
"You can develop one 135-36 film (203 cm?) in 473 ml or two roll films together in 946 ml of diluted solution. If you develop a 135-36 film in a 237 ml tank or two 135-36 films in a 473 ml tank, increase the development time by 10 % [...].
That would then correspond to Ilford’s ID-11.
Gucker
Does it really say 203 cm²? If you take only the exposed 35mm area for ‘just’ 36 shots, I work out that it’s already 311 cm² (36 x 2.4 x 3.6). With roll film, the area would actually be almost double that: 376 cm² (12 x 5.6 x 5.6).
