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Adox d76 reusing regime

DeletedAcct1

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I've bought a 1 liter pack of Adox d76 to try.
I know Ilford id-11 can be reused adding +10% time every other single roll after the first, up to the tenth roll.
Kodak d76 must be the same.
And Adox d76?
Can this regime be applied to it also?
 
From the Adox website:

"The ADOX D-76 developer can be used exactly like the Kodak D-76, with the already-published D-76 times, dilutions and factors."
 
I've got another question: on the lable there's written that the capacity is 10-16 films per liter.
How is it achieved?
 
Alessandro Serrao said:
I've got another question: on the lable there's written that the capacity is 10-16 films per liter.
How is it achieved?
Click to expand...

By reusing the stock solution. As you mentioned, Ilford recommends adding 10% development time after each film for ID-11. You get up to 10 rolls with this.

Kodak's D-76 instructions aren't quite the same. Their recommendation is adding 15% per roll, but only after the first four rolls are processed. This brings you to a total 16 rolls per litre.

Important to note that the used developer always has to be mixed with the unused part after each film developed.


Kodak D-76 (info on page 5 of the data sheet posted above by Luxaeterna) :


Ilford ID-11 (page 8 of data sheet) :
 
16 is the maximum capacity per gallon, not per litre...
 
The J78 document cites a quart/liter pack used at full strength with reuse gives a capacity of 4 rolls per liter.

Below the Storage Life and Capacity table we read

“If you use D-76 Developer diluted 1:1, dilute it just before you use it, and discard it after processing one batch of film. Don’t reuse or replenish this solution. To extend the useful capacity of D-76 Developer diluted 1:1—when processing two 36-exposure rolls in a 16-ounce tank—increase the recommended time by about 10 percent.”

16 fluid ounces = 473 ml. Thus, a liter of stock D76 diluted to 2 liters (1:1) could process 8 rolls of 35 mm film.

This works for short 35 mm reels. But the taller 120 reels require move volume to cover them.
 
Something else to consider when reusing stock developer is what kind of film you have been developing in it. You can probably reuse a litre of D76 adding 10%, like the Ilford suggestion, if you're developing FP4+ or some Foma film. But, if you're developing Tmax, the developing byproducts are much harsher - that film is hard on developer. You will not get the best results reusing the stock.

The unreliability of predicting the outcome makes reusing stock a bad idea. I'd rather use it up 1:1, one-shot.

I replenish D76. It works well for me.
 
Kodak's data sheet is notoriously unclear, at least compared to Ilford's.

Couple of older threads on the subject:

Kodak d76 capacity

Hi everybody, please help me to understand a thing. The declared capacity for Kodak d76 is 10 rolls for 1 liter of solution. This means that 100ml is sufficient to develop 1 roll (assuming a 35mm 36exp roll). Why Kodak suggests to use a 250ml minimum concetrate volume to develop one roll?
www.photrio.com

D-76 increase per roll

If I am using a stock dilution of D-76 - one liter - should I increase the development time after each 2 rolls? Like 15 percent after each two rolls?
www.photrio.com
 

for me, quality is more important than quantity. I use stock with water 1+1 once and make it fresh when gone from bulk. cheaper than losing precious memories, but then I don't drink or smoke, and I don't have a car either.
 
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