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Let's look at the bench mark developer ID-11/D-76. Both of these developers are pretty much the same formula but packaged differently, Ilfords ID-11 coming in two bags and Kodak’s D-76 in one. These produce good negatives for all general purpose photography. This developer became the benchmark by which all other developers are measured, not because it is the best but purely because there had to be one! It’s a great all-rounder and will develop most films well. A jack of all trades but master of none would be a fair description.
When mixing the following formulas take two thirds of the water, add a pinch of the measured Sulphite and dissolve. Add and fully dissolve the Metol. Continue with the rest of the Sulphite and remaining chemicals in the order given. The pinch of Sulphite stops the Metol oxidising.
Sodium Sulfite 100g
Sodium Tetraborate* 2g
Water to make 1000ml
• This developer can be used as stock or diluted up to 1:3
• Stock: develop film for 5 to 15 mins at 20C dependent on the speed of the film - faster films need more development
For other developing times, at differing dilutions, just multiply by the total number of parts e.g. 5 minutes stock is the equivalent of 20 minutes 1:3 (5 minutes x 4 total number of parts).
The original D-76 (as shown above) did have its problems. It changes alkalinity with time - not a good thing for a developer because its activity then changes. D-23 was formulated to overcome these problems and is a better developer.
If you really want to use ID-11/D-76 then change to FX-15 by Crawley. FX-15 is a much improved version of this classic and really does look much better.