JOBO ATL 15xx Drum vs 25xx, ATL, Kodak E6

[jinx]

Hi,

3 questions::confused:

1) I like to know if there are disadvanteges in using the 15xx drums vs 25xx drums with an ATL.

2) I'm planning to do Kodak E6 with an ATL 2. Has anyone experience on how much you have to fill in the tanks of the ATL (as a minimum) to get 270ml/240ml in the drum?

3) Can you use Kodak E6 single use chemestrie twice? :rolleyes:I have a Jobo Multitank 2 witch requires 270ml even for 1 Film, can these 270ml be reused for a second film (Kodak gives 235ml as a minimum for 2 Films), if yes, same time or longer dev time?

Any tips/do's and don'ts for Kodak E6

Thanks
Marc

 

[mtjade2007]

I own a Jobo ATL processor. I use 15xx drums only although I have some 25xxs. Because the supply tanks are limited to 1 liter each there is no real need of using larger drums. For processing C-41 negatives if I follow Kodak's capacity guidance I should process only one roll of 220 max at a time any way. I never really succeeded in developing two 220 rolls at a time. So I stick to one 1540 drum with about 800 ml of chemical for processing all my films. To me trying to cut corners in saving chemicals had always resulted in processing failures. I know I probably use more volume of chemicals than necessary. I have no desire to find where the real margin is. I just use more and my negatives are great.

Kodak E6 capacity is similar to C-41. Trying to save or reuse never worked well for me. As a result the 5 liter E6 kit at more than $50 a pack is too expensive for me. I don't process E6 any more.

Jobo processor does not actually measure the volume of chemicals when pumped out of the supply tanks into the drum. The pump basically cranks up to a constant pressure. The pressure is applied to the supply tank and force the chemical to flow out into the drum. It is the time that controls how much volume is pumped into the drum. Unless there is a problem with the pump or there is a leak somewhere the volume pumped seems always close enough.

I once tried to process Velvia 50 and reuse the E6 chemicals per Kodak's instruction. The colors did not come out good. That made the 5 liter E6 kit way too expensive for me.