Capacity of D76/ID11 1:1

[John Irvine]

I've looked hither and yon but have not found the answer. With 500 ml of stock D76/ID11 diluted to 1 liter, how many square inches of film, or rolls of 120, or sheets of 4X5 can you safely develope?

 

[Anscojohn]

My guess would be 160 square inches.

 

[Venchka]

Once upon a time, Kodak stated 8 ozs. D-76 (stock) per 80 sq. in. of film. I have conversed with people who swear they get good results from 4 oz. per 80 sq. in.

Personal testing will tell you what works.

 

[MikeSeb]

I usually allow 200-250 mL of stock D-76, however it's diluted, per 8x10 equivalent (ie, one 35mm or 120 roll, 4-4x5 sheets, etc). I haven't bothered to test whether using less is feasible; as I recall, the 250 is Kodak's recommendation.

Stuff's so cheap compared to the film cost and the time I spent exposing it that it makes no sense to scrimp on developer.

 

[tropicpine]

From a PDF file I downloaded from Kodak some years ago.

1 litre of D76 at 1:1 will develop 2 8x10 sheets of film. ... you should get 4 4x5 sheets out of 500ml.


NOTE: While this does state how much D76 solution is needed, no statment is made as to how much your developing tank requires. Make sure you use enough soultion to cover your film.

 

[Martin Aislabie]

Look at Page 7 of the Ilford Fact Sheet - http://www.ilfordphoto.com/Webfiles/200621612182416.pdf

1L of neat ID11 will dev 10 rolls of 135-36 or 120 or 10x8 sheet film

Therefore 1+1 will give you half that capacity

However ID11/D76 at 1+1 is a one shot developer - so unless you want to experiment, it gets binned after developing one lot of film and a new batch made up for the following lot of film.

Most people use ID11/D76 at 1+1 for the consistency it gives - as you use fresh developer each time

If you want to re-use the developer for subsequent batches of film use ID11/D76 neat and adjust the developing time according to the instructions

Martin

 

[John Irvine]

Using the most conservative numbers here, 500 ml (8 oz) of stock diluted to 1 liter would be good for one roll of 120 (21/4X30 = 70 sq in) or four (4X5X4 = 80 sq in). You can probably get more but as Mike says, "it makes no sense to scrimp on developer".

I interpret "one shot" to mean you can run your four 4X5 at the same time or one after the other, but you can't develop one sheet a night for four nights.

 

[dancqu]

Likely Good for More

I have conversed with people who swear they
get good results from 4 oz. per 80 sq. in.
Personal testing will tell you what works.

Eight rolls per liter of stock should be a breeze.
There is enough chemistry in a liter of D76/ID-11
to suggest even more possible. Increased developing
times with increased dilution.

I doubt the limit of capacity has ever been
tested. Dan

 

[Ronald Moravec]

4 oz will develope 80 sq inches capacity wise. You probably need the small 3" dia Jobo reel used on the motor rotator to cover the film with this small an amount. It does work. And works with E6 too.

Otherwise mix it 1:1 and use it in an 8 oz inversion tank or use it stock and put two 35mm rolls thru it. There will be enough chemicals to do the job. Been doing 1:1 for 50 years without a problem.