Ilford ID-3 formula

[Harold33]

This is presumably a question for Ian Grant: What is the "right" Ilford ID-3 formula ?

I looked at

-- Ilford book of formulae (various editions)
-- Jakobson & Jakobson, Developing, 18th ed., p. 173
-- Photographer's Formulary sheet for ID3
-- the internet

none of these sources give the same formula.
It's not only a matter of concentration (ID-3 can be made as a single or a divided solution), but a matter of proportions.

 

[Xmas]

http://www.film-and-darkroom-user.org.uk/forum/archive/index.php/t-993.html

 

[fotch]

Does Ilford publish the formula?

 

[Christopher Walrath]

When in doubt, default to Ilford publications for the precise recipe.

 

[Jim Taylor]

Not sure if you've checked out this site; I guess you probably have, seeing as it's Ian's!

 

[Ian Grant]

Not sure if you've checked out this site; I guess you probably have, seeing as it's Ian's!

Thanks

It keeps relatively poorly (a few weeks) and so it's better to make up as a 2 part developer. Ilford listed it both as a single and also a 2 part solution in various publications.

For critical work Ilford suggest using the 2 part version of the developer, this would be film processing, as a soft working print developer it would be less important.

Ian

 

[Ian Grant]

It's worth adding that Ilford originally published their formulae using Crystalline Sodium Sulphite and Carbonate but industry in Europe switched to using the Anhydrous versions after WWII and Ilford initially gave the weights for both.

Ian

 

[nworth]

I'm not sure where I got this - probably somewhere on the web.

Ilford ID-3 film developer (soft working)
Water (52C) 750 ml
Metol 6 g
Sodium sulfite (anh) 25 g
Sodium carbonate (anh) 37 g
Potassium bromide 2 g
WTM 1 l
Dilute 1:3. Develop about 12 minutes at 20C.
Variation:
Use only 1 gram of potassium bromide.

 

[Ian Grant]

Kodak D165 (Selectol Soft) uses 37g Sodium Carbonate (anhyd), Ilford ID-3 uses 37.5 and only 1 gm Potassium Bromide.

ID-3 Ilford Soft Contrast Developer
​

Metol	6 g
Sodium Sulphite (anh)	25 g
Sodium Carbonate (anh)	37.5 g
Potassium Bromide	1 g
Water to	1 litre

To use: Dilute 1+ 3

​

Concentrated Stock Solutions ID-3
​

Part A
Metol	12 g	60 g
Sodium Sulphite (anh)	50 g	250 g
Potassium Bromide	2 g	10 g
Water to	1 litre	5 litre
Part B
Sodium Carbonate (anh)	75 g	375 g
Water to	1 litre	5 litres

To use: Dilute 1 A +1 B + 6 Water​

This is the same formula as Kodak D165, which is similar to Kodak Selectol Soft. (Kodak use 37 g Sodium carbonate in a single solution version)

Times - Films Dish 12mins Tanks 15 mins 20ºC
Papers 2 mins 20ºC

 

[timor]

I'm not sure where I got this - probably somewhere on the web.

Ilford ID-3 film developer (soft working)
Water (52C) 750 ml
Metol 6 g
Sodium sulfite (anh) 25 g
Sodium carbonate (anh) 37 g
Potassium bromide 2 g
WTM 1 l
Dilute 1:3. Develop about 12 minutes at 20C.
Variation:
Use only 1 gram of potassium bromide.

It appears to be a single solution version of ID3. Concentrated version in two solutions keeps longer.
http://bjornburton.org/ilford.html.gz
Much longer. I keep Beutler for more than a year and it is as fresh as just made. ID3 is very similar to Beutler accept for potassium bromide.

 

[paul_c5x4]

Concentrated Stock Solutions ID-3
​

Part A
Metol	12 g	60 g
Sodium Sulphite (anh)	50 g	250 g
Potassium Bromide	2 g	10 g
Water to	1 litre	5 litre
Part B
Sodium Carbonate (anh)	75 g	375 g
Water to	1 litre	5 litres

Ian - In my 1958 copy of Ilford's Manual of Photography, the pot.bromide is in solution B.

...

 

[timor]

Ian - In my 1958 copy of Ilford's Manual of Photography, the pot.bromide is in solution B.

...

So says Bjorn Burton website.