[pure-silver] Re: film capacity of stock D-76

  • From: Howard Efner <hfefner@xxxxxxxxxxxxx>
  • To: pure-silver@xxxxxxxxxxxxx
  • Date: Wed, 1 Feb 2012 09:16:02 -0700

Bogadan, If you are running that much film through the tank, it would be more economical to go to a replenished system. Mix a batch of D-76R and add it to the tank at a rate of 1 oz/80 sq. in. of film processed. That way you maintain the activity of the developer. With that many 8x10 sheets developed, you are close to exhaustion of the developer. With replenishment, the GYF rates D-76 at 9600 sq. in. / gallon or 120 8x10 sheets.


Howard

Howard


On Feb 1, 2012, at 4:56 AM, Bogdan wrote:

Hello all,

I've done a Google search and can't find a satisfactory answer.

Yesterday, I developed 20 8x10 sheets of Tri-x 320 (iso 200) in a stock solution of D-76 using a 3.5 gal tank and film holders (a first... used to do the tray card shuffle).


I have 16 4x5 sheets of Efke PL 25 Ortho and 4 sheets of 6.5x8.5 sheets of T-max that I want to develop today. Question is, can I continue using the same tankful of D-76 or is it exhausted and do I have to prepare a new batch 0f D-76 to do the Efke and T-max?

Cheers,
Bogdan K


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