jtk Posted February 18, 2006 Share Posted February 18, 2006 Does anybody still run E6 in a manual tank line...Nikkor reels,nitrogen burst etc? What kind of film volume is needed to keep whatamount of chemistry stable? A dozen rolls daily? Stainless steel sinks/tank/reel lines are cheap and far better thanrotary systems for quality, as good as high volume dip/dunk assumingroutine replenishment and monitoring....but I wonder if anybody stilldoes it? Might be a niche market, filling in behind dip/dunk labs thatget out of the business. Link to comment Share on other sites More sharing options...
discpad Posted February 18, 2006 Share Posted February 18, 2006 Depends on the tank volume and area: Aerial oxidation forces you to have a tank turnover in the first & color dev baths every X number of days. I'll let Ron M. fill in the value for X :) Link to comment Share on other sites More sharing options...
rowland_mowrey Posted February 18, 2006 Share Posted February 18, 2006 I don't know the exact value for "X". Sorry. I do know that the E6 process has to be run just about daily if you have open tanks as described here, and the changes in the process are due to aerial oxidation of the two developer solutions and also the pH drop of the color developer as it absorbs carbon dioxide from the atmosphere. This latter change is not insignificant. Kodak kept their E6 process seasoned by using it daily, and the trade recomendation was the same for deep tank processing. Using Nitrogen burst helped a little as it purged air from the solutions, and put a head of nitrogen over the tank, provided you had a good tight lid on the tank and a floating lid both. Ron Mowrey Link to comment Share on other sites More sharing options...
discpad Posted February 18, 2006 Share Posted February 18, 2006 Ron, didn't E-K publish data about 5 years ago or so on managing reduced processing E6 volumes, such as adding shots of replenisher? Link to comment Share on other sites More sharing options...
daniel_fortier Posted February 18, 2006 Share Posted February 18, 2006 John, If you use floating lids + modified covers that seal good with spigot in order to flush out the remaining air with nitrogen, you will need little activity over a long period. Considering storage time table for working strength mixed dev. divide that by 2 to be safe then if you can process enough films as to replenish half the thanks volume about 6 liters for devs or only 60 some rolls during that period, you should have no chemistry problems (remove/filter chemistries & clean thanks as you sees fit). A few years ago I prepared for these times (smaller custom pro-lab) but after 30 years in the dark I don't have the heart anymore... If you are interested I have an almost ready to go dream installation! I designed & built a control panel with simple electronic controls for temp & agitation. It can be adjusted to any temp from 20 to 40 Celsius, it will control heating / chilling & multiple gaseous bursts agitations cycles & durations. (chilling for B&W in Florida!) Plus a bunch of thanks / reels / sheets holder / wash thanks (bottom flush) Will shoot some images of the beast to post if you are interested. regards Link to comment Share on other sites More sharing options...
discpad Posted February 18, 2006 Share Posted February 18, 2006 Hmmm, I'm looking to trade in my pair of Jobo ATL-3 processors! :) Please do post pix of the beast... Sounds interesting! Link to comment Share on other sites More sharing options...
daniel_fortier Posted February 18, 2006 Share Posted February 18, 2006 It's in my warehouse, on a shelf behind a disassembled Compact 140VS dual dev B&W REFREMA only one build like that in the world, one can chose between two different developers at any time, interested? ;-) I will go by Tuesday for sure, but don't know if I will have or need help to get to it. regards Link to comment Share on other sites More sharing options...
jtk Posted February 18, 2006 Author Share Posted February 18, 2006 ...don't take my interest too seriously...I've just started thinking about it and don't know if I want to do a round trip to FL. Thanks anyway.. Link to comment Share on other sites More sharing options...
daniel_fortier Posted February 21, 2006 Share Posted February 21, 2006 To follow up, could not go today to busy processing films! will go on Saturday with help, someone buying out our Durst 1200 & custom darkroom furniture. Really hope to get to the control panel, to show off ;~) regards Link to comment Share on other sites More sharing options...
daniel_fortier Posted February 25, 2006 Share Posted February 25, 2006 I went, but the friend was with wife & baby... I did not ask for a hand. Yes the plywood is for hurricane. I have to empty one of the two storage spaces next month, the control panel will be first.<div></div> Link to comment Share on other sites More sharing options...
daniel_fortier Posted February 25, 2006 Share Posted February 25, 2006 Also this is interesting, a custom built dark box with three compartment row for stainless steel size film reels. You can load ahead all your reels then close & latch the box to keep them safe, and turn on the light to prepare run. When everything is set turn off lights & go!!! just have to drop the reels in your basket or you can also load ahead of time for the next run on a rotary processor. It was built by a true craftsman, a peace of darkroom art! Can give more details if someone want to build one. regards<div></div> Link to comment Share on other sites More sharing options...
daniel_fortier Posted May 8, 2007 Share Posted May 8, 2007 At last sorry for the long delay on a promise. Here is the ready to work control unit that can be used to create almost any burst tank line set-up, controlling temperature to 0.1C heating and cooling, burst agitation cycle on and off duration for nitrogen and air. To complete the wet system you only need regular parts available at place like Grainger.<div></div> Link to comment Share on other sites More sharing options...
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