There are 4 ways of using a film developer. 1 With replenishment using a specific replenisher like D-76R, 2 With self replenishment. A portion of the used developer is discarded and replaced with fresh developer. 3 Without replenishment but with increasing the development time for each additional roll or sheet. 4 Using the developer as a one-shot. Kodek once specified the time increase for option 2 but I don't remember what it was. Something like 5% per roll based on 1 liter of developer. The larger the amount of developer the smaller percentage increase per roll.. Jerry ________________________________ From: Bogdan <bkarasek@xxxxxxxxxxxx> To: pure-silver@xxxxxxxxxxxxx Sent: Wed, February 1, 2012 6:56:45 AM Subject: [pure-silver] film capacity of stock D-76 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 ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.