AGFA Scala development

Discussion in 'B&W: Film, Paper, Chemistry' started by Rumzinho, Jun 26, 2007.

  1. Rumzinho

    Rumzinho Member

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    Hi everyone,

    Does anyone knows how to develop the Agfa Scala films?
    I've developed Rollei RSD (which have an amazing quality) and I was wondering if would be possible to develop Agfa Scala.

    Cheers,
    JSV
     
  2. Alessandro Serrao

    Alessandro Serrao Member

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  3. Slavomir Polivka

    Slavomir Polivka Subscriber

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  4. thebanana

    thebanana Subscriber

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    Check out the info here:

    http://www.digitaltruth.com/devchart.html

    I've processed Scala into "negatives" successfully using Rodinal, but for optimal "positive" results you are better off using Dr. 5 or someone similar for processing.
     
  5. Petzi

    Petzi Member

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    There is a lab in Germany that processes Scala in the original Scala chemistry.
     
  6. Rumzinho

    Rumzinho Member

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    Thank you all

    Thank you all for your kindness.
    I think I'll try the fomapan r100.

    Cheers,
    JSV
     
  7. AgX

    AgX Member

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    Rumzinho,

    I just saw you changed your interest towards the Fomapan 100R film.

    Here in Germany there is new small business doing specialized reversal processing in a proprietary 10 bath process. (Not the one Petzi is referring too.) This process gains an enormous density range. Price: somewhat higher than dr5.
    At the moment that business runs two processes, for the Rollei Pan 25 and the Fomapan 100R. For the latter a density range from 0.04 to above 4 is indicated.
    However from what I understood that business is not accustomed to customers from abroad.
     
  8. Alessandro Serrao

    Alessandro Serrao Member

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    Why not develop your film by yourself?
     
  9. coigach

    coigach Member

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    Hello, thanks for info. Do you have a website address for the German company you refer to which does reverse processing?

    I use dr5 a lot and think it is wonderful. Top quality, excellent customer service. I particularly like Ilford SFX and Delta 100 dr5 reverse processed. I send my films from Scotland to the USA and have never had any problems. Would urge anyone wondering what it's like to give dr5 a go.

    Best wishes,
    Gavin
     
  10. AgX

    AgX Member

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    Gavin,

    There are contradictory statements on that website, once that one-man business (Klaus Wehner) processes both, the Rollei Pan 25 and the Foma, then again only the Foma. You are encouraged to send in film in at least a batch of five and place the money on his account which should be stated then, but does not show up on that site...

    Anyway, the process seems interesting:

    www.wehner-net.de/schwarzweissdia (only in German)
     
    Last edited by a moderator: Jul 12, 2007
  11. coigach

    coigach Member

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    Thanks for link. Will check once-in-a-while and see if any info is posted in English. I'm afraid my Ferman only streches as far as ordering wheatbeer...:D
     
  12. coigach

    coigach Member

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    I can order wheatbeer in German too!

    Unfortunate typo above...!
     
  13. Hans Borjes

    Hans Borjes Member

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    I am guessing that Rollei Infrared and Agfa Scala can be processed with identical parameters, but I still have to proof that.

    See http://home.snafu.de/jens.osbahr/photography/reversal_processing/osbahr_reversal.pdf
     
  14. dr5chrome

    dr5chrome Member

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    ...if the RSD has such amazing quality, why don't you keep using it? There are published recipes on this website for you to use, simply do a search.

    dw

    www.dr5.com



     
  15. Hans Borjes

    Hans Borjes Member

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    Probably film speed. -6 DIN*/0.2 ASA is a bit challenging...

    *Note the negative sign.
     
  16. AgX

    AgX Member

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    Hans,

    I never used that film but by looking at the original Agfa datasheet and the characteristic curve given there (Agfa does not give speed figures for this film) I assume it would have roughly 12 ASA. Maco states 50 ASA: But as Agfa gained their curve at tungsten lighting and it is an orthochromatic film and Maco may have made their measurements with daylight (corresponding to Maco's suggested use as camera film) the rating of the latter seems ok to me.

    Or did I get something terribly wrong?
     
    Last edited by a moderator: Jul 13, 2007
  17. ath

    ath Member

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    Maybe.
    Quote from the current datasheet here: http://www.mahn.net/DL_MAHN/RSDengl.pdf

    Since this is not too good english let me describe it based on the german datasheet:
    1. set yout meter to 6 ASA.
    2. start an exposure sequence starting with normal exposure and add 1 stop per frame
    3. best exposure should be ca. +4 to 5 stops.

    They started advertising at photokina with 25 to 50 ASA but had to correct this...
     
  18. AgX

    AgX Member

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    Sorry,

    I referred to their first datasheet in German on this film. I did not realize that they released a different edition...
    (Here the problems of making an ultimate and up-to-date availibility list show up.)

    Anyway, I just compared the characteristic curve (Agfa) of this film with another Agfa film (panchromatic / standard reversal) rated at 200 ASA. That showed roughly a difference of 1,2 log units in speed, which would make 4 stops or 12 ASA. Not yet taking into account the different sensitation. So much about theory...
     
    Last edited by a moderator: Jul 13, 2007
  19. AgX

    AgX Member

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    This all is quite enigmatic to me...

    Does it mean that Maco, as I, went erroneously on the same wrong path while calculating this films speed?
     
  20. AgX

    AgX Member

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    In trying to deduce the speed of this direct reversal film I did not take into account that the reversal film which I chose for comparison of the curves has a higher Dmax. Considering this still would only show the film in question one or two stops slower than I assumed...
     
  21. Hans Borjes

    Hans Borjes Member

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    Yes, I think so. Have a look at
    http://home.snafu.de/jens.osbahr/photography/reversal_processing/osbahr_reversal.pdf chapter 7 "Rollei Slide Direct" and Table 1 "Rollei Slide Direct, exposure in bright sunlight".

    Please also note the two links given there to related information from Rollei/Maco. I have had a chat with a person from Monochrom.com in Berlin, and this guy has told the same story about RSD speed from his own practical experience.

    Maybe Rollei/Maco expresses film speed in such a complicated way because many exposure meters cannot be set to speeds lower than 6 ASA and users would be confused how to set their equipment to 0.2 ASA.
     
  22. dr5chrome

    dr5chrome Member

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    We'd like to thank Gavin for his support of dr5. He is one of our biggest UK clients and a good shooter to boot!

    best regards.

    dw

    www.dr5.com




     
  23. nworth

    nworth Subscriber

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    Agfa Scala is a reversal film designed to produce black and white transparncies. If you want transparencies, you will have to reversal process the film. Agfa kept the processing it used for Scala proprietary, so some experimentation will be required unless someone out there has experience with this. The chemicals and process used to reversal process Kodak TMax 100 may be a good starting point. You might also look at motion picture reversal processing chemicals and procedures.

    A long time ago, I used some reversal motion picture film as still camera negative film. This was some old duPont stuff I picked up. It worked, but it tended toward high contrast and blocked highlights. Still, with care, you should be able to use Scala as a negative film. The other contributors have given some reasonable starting points.
     
  24. coigach

    coigach Member

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    :D Aw shucks...!

    For those who don't know me, I've no connection to dr5 other than as a customer who is very pleased at the quality service they offer. I've been using the service exclusivey for several years and it delivers consistently excellent results. It's a pleasure to recommend such a unique service to other photographers.

    Cheers,
    Gavin