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  1. #1
    gandolfi's Avatar
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    Liquid emulsions.. who is doing it?

    ...emulsions I mean?

    I am doing it a lot - have done it for many many years, but as the galleries in here doesn't tell much, I was qurious to know, whether I am alone in my bliss, or if there were others "doing it"....

    (LE beats almost all papers! prove me wrong...)

  2. #2
    Photo Engineer's Avatar
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    When I want to do it, I make my own.

    PE

  3. #3

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    i've been doing it off and on for a handful of years.
    it is a lot of fun
    i was going to make my own, as PE does, but time is not something i have a lot of, so i just buy it at the store.

  4. #4
    gandolfi's Avatar
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    Quote Originally Posted by Photo Engineer
    When I want to do it, I make my own.

    PE
    simple or?

    I've only tried a very simple home made emulsion once - lots of fun, but the product I can buy is still so much much better (yet)..

    I know the SE1 best (from Kentmere I think)
    used it for years.
    I have recently have been familiar to the emulsion FOMA makes - that's quality for you..(I didn't get enough last time I was in Prague; won't make that mistake next time....)

    I also know Liquid light from Rochland (too difficult for me......)
    Tetenal "WORK" which is far too expensive..
    MACO VC (not good in my first experience, but I am gonna do it some more.)

    in short: 80% of my images are now made in liquid emulsions - it is actually cheaper (and much better) than "normal" papers..
    (quicker too)

  5. #5

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    Quote Originally Posted by gandolfi
    simple or?

    I've only tried a very simple home made emulsion once - lots of fun, but the product I can buy is still so much much better (yet)..

    I know the SE1 best (from Kentmere I think)
    used it for years.
    I have recently have been familiar to the emulsion FOMA makes - that's quality for you..(I didn't get enough last time I was in Prague; won't make that mistake next time....)

    I also know Liquid light from Rochland (too difficult for me......)
    Tetenal "WORK" which is far too expensive..
    MACO VC (not good in my first experience, but I am gonna do it some more.)

    in short: 80% of my images are now made in liquid emulsions - it is actually cheaper (and much better) than "normal" papers..
    (quicker too)
    have you ever used the emulsion by luminos ?
    it is really fast and pretty amazing stuff.
    too expensive for me

  6. #6
    David A. Goldfarb's Avatar
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    Luminos papers were Kentmere, and I'd bet the emulsion was as well.
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
    Academic (Slavic and Comparative Literature)--http://www.davidagoldfarb.com

  7. #7
    Photo Engineer's Avatar
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    A typical emulsion, as I posted elsewhere, uses 4 ml for a 4x5 print or about 16ml for 1 8x10. One run uses 5.1 grams of silver nitrate and makes about 120 ml of emulsion or about 8 8x10s.

    Since my last post above, I was in the darkroom making emulsions. I made 2 with (hopefully) two contrast grades. I also coatated 4 4x5 sheets on Strathmore paper to test them out. I make double size batches now that I have it down, so I made two 240 ml batches actually. If I have time, I may make a 3rd tonight. The coatings are drying in a paper safe right now. If everything goes as planned, I will have 3 contrast grades of emulsion, and after some extra fiddling in the darkroom, I will have 2 speed ranges with 3 contrasts.

    That does not seem to be a long time or an inordinate expense on my part, but you may feel otherwise. Making it yourself is very flexible. You can pick and choose once you get used to the lab procedures.

    PE

  8. #8
    David A. Goldfarb's Avatar
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    In the other thread you mentioned that you liked Bruce Kahn's formula. I'm interested in trying it (but probably won't get to it for at least a month, because I need to order supplies, and I'll be traveling, so--no rush). How would you adjust the contrast grade in that formula?
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
    Academic (Slavic and Comparative Literature)--http://www.davidagoldfarb.com

  9. #9
    Photo Engineer's Avatar
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    I am working on the methodology of contrast control.

    It is related to halide content, size frequency distribution, and gelatin. I don't have everything down pat, so I keep getting grades ~1.0 and ~2.0, but I can't do better than that. Basically I have 2 grades of paper, but that isn't enough. Also, the lower grade has too low a maximum density which I must work on as well.

    If you can get the papers from Agfa which were collected at the end of WWII, there is a discussion in there on contrast control of paper emulsions. Much of it is in German or uses German technical terms. It isn't too hard to follow with a good dictionary.

    PE

  10. #10
    David A. Goldfarb's Avatar
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    Thanks!
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
    Academic (Slavic and Comparative Literature)--http://www.davidagoldfarb.com

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