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Thread: Developing E-6

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    Silverpixels5's Avatar
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    Developing E-6

    I've been trying to develop my color positive film lately with not too good results. The film seems to come out too dense each time. Can someone please tell me how each development step effects the film? Does the film get denser or less dense the longer the development? I'm thinking more, right? What exactly is the reversal bath doing? and the bleaching? The more familiar I am with each step, the better i can deal with process control. Oh I am using the Kodak single use e-6 kit. Thanks!
    RL Foley

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    Dave Parker's Avatar
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    There was a really good thread on E-6 Developing, just last week, that discussed the different steps an how they affect the final image, you might try the search, I read through it quite a few times and there was good information there.

    Dave

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    Silverpixels5's Avatar
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    Thanks! I'll go searching...
    RL Foley

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    Sounds like a weak first developer. When I was doing my own E6 I used to let the color developer go longer than the suggested time and I thought it made the colors look richer. Is this something others do and would it have any deletrious effect on the color balance? One of these days I'd like to try my hand at LF E6.
    Gary Beasley

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    Silverpixels5's Avatar
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    Without knowing much about the process, i actually let it go for a shorter amount of time. My negatives are all quite dark. I'll do another roll and let it go for considerably longer and see how that effects the process.
    RL Foley

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    Photo Engineer's Avatar
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    Color development tends to go to completion, but over development in the color developer tends to yield color contamination and changes in sharpness and grain by overwhelming some of the 'corrective' chemistry in the coating.

    The first developer is supposed to yield a rather foggy silver negative image to insure cleanout of the dmin. If transparencies are dark or light then the first developer is usually the culprit. Under developing in the first developer gives darker slides and overdevelopment gives lighter slides.

    Development times in the first developer (we call it the MQ) are not the same for Fuji and Kodak films. Also, mixing the films may cause problems from what I have heard.

    PE

  7. #7
    Dave Parker's Avatar
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    Quote Originally Posted by Photo Engineer
    Development times in the first developer (we call it the MQ) are not the same for Fuji and Kodak films. Also, mixing the films may cause problems from what I have heard.

    PE
    PE,

    I find this hard to believe, when I worked in the lab, we ran the E-6 films in the same machine, Day in and day out, with a strong mix of both brands and never showed any problems at all, we used the Kodak E-6 chemistry, with no problems at all, it seems the most important thing at least on the first steps is the temp control, over the types of films that are being run.

    Dave

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    Photo Engineer's Avatar
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    Dave, there are two instructions for E6 in the Jobo manuals and several sites quote different times for the first developer for Fuji and Kodak E6 products. There have been numerous posts on problems with MQ times posted on PN and I have and numerous personal inquiries about this.

    Among other things, mixing the two film products (lines) can give stain and other undesired effects. I do understand what you are saying, but Fujichrome almost lost out totally back in the 90s due to this very problem and made the cover of Darkroom Techiques magazine due to a serious problem along these lines. It has persisted in a smaller measure since then.

    Fuji and Kodak E6 products do not all take the same E6 MQ time for the best results in color and ISO speed, nor do they work well in the same process at the same time.

    Please search PN for this topic. Dan Schwartz has made several posts there regarding this very problem IIRC.

    PE

  9. #9
    Dave Parker's Avatar
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    Ron,

    I am just citing what we did in the lab, and the majority of the other E-6 labs around the country do, myself, I use a Sidekick to do my processing now, so have no problems.

    See ya in June.

    Dave

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    Dave;

    Looking forward to it. I'll be there a few days early to set things up. I guess Aggie also told you when she is arriving. We can talk then.

    PE

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