Archived posting to the Leica Users Group, 2001/02/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> If you have a 1000ml tank which holds four rolls of 35mm film. Mix Xtol > 1:3. In 1000ml of 1:3 Xtol, you have 250ml of raw developer. This will > properly develop 2.5 rolls of film. I put three rolls in plus an empty > reel. In a 500ml tank, I put in one roll and an empty reel. In an eight > roll tank (2000ml) I put in six rolls plus two empty reels. This > is fudging > a little bit. This is an excellent discussion... My Jobo (model 1500) 2523 tank (two 135, or two 120 or 1 220) uses only 330ml of chemical per process step, ...but a quick experiment, shows this tank (with two reels and a core) will actually hold 450ml during the process. Also, since it empties the entire chemicals bottle when pumping chemicals in (it doesn't know how much is in the bottle)...I can put 400ml in the bottle, instead of just 330...and can process two reels 1:1 and meet the 100ml of developer per reel. The large 2553 tank (5 135, 6 120, 3 220) easily holds 1000ml, but the chemical bottle only holds barely 800 maxed out...so it looks like I need to use the empty reel trick to use the large tank with Xtol 1:1, which will allow me to process 4 135 rolls. I do have (what I believe is) the older Kodak Xtol PDF data sheet (dated April 2000) that has the 1:2 and 1:3 times in it. If anyone would like a copy of it, please email me off-list, and I am more than happy to send it to you. NO BULL