Tetenal Neofin Blau (Blue), anyone?

Discussion in 'B&W: Film, Paper, Chemistry' started by Smudger, Dec 24, 2011.

  1. Smudger

    Smudger Member

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    As part of an estate purchase I acquired about 15 boxes of this film developer,neatly packed in small plastic bottles or glass ampoules.
    "Designed for use with slow and medium speed films'.
    The fluid is a very light straw color,with no precipitate.
    Anyone used it?
     
  2. Trask

    Trask Subscriber

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    Yes, quite a bit a number of years ago. I can send you some information on this developer if you PM me with your email address. I have some of my own waiting an appropriate use. Nice score -- it's hard to find anymore.
     
  3. michael_r

    michael_r Subscriber

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    It was originally designed to be a high acutance, non-solvent developer. Blue was the most popular one, but there was also Red, which I think was the version for faster films. Depending when yours are from, the formulation varied.
     
  4. Jojje

    Jojje Member

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  5. 37th Exposure

    37th Exposure Member

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    U.S. customers can get it at Freestyle Photo. It is listed on the website. I've been considering ordering a few bottles to try.
     
  6. marcmarc

    marcmarc Member

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    Isn't this a ready made version of Beutler developer? I seen to recall Beutler which is normally mixed at home was available at various times under the Neofin Blue name. I saw the kit at Freeestlye. It looked too confusing and I opened the box to see the directions and it was mostly in German I recall. I know Beutler is a developer that requires one to mix up a couple of formulas and then one dilutes them together for a desired contrast.
     
  7. sandermarijn

    sandermarijn Member

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    The manual is pretty terrible, even in English (I believe I have the instructions in multiple languages). You will have to experiment to find your own ideal time/dilution/capacity/etc. I've never understood why Tetenal make such a fine developer and then don't bother to tell us how to use it. Some sort of analogue photography puritanism maybe?
     
  8. Jojje

    Jojje Member

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    Fotoimpex catalogue says: "Dieser Entwickler wurde
    (...) von Tetenal zusammen mit Willi Beutler für die ADOX/efke Filme zusammengebraut."
    This developer was configured by Tetenal's Willi Beutler scpecially for ADOX/efke films.
     
  9. RidingWaves

    RidingWaves Member

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    Hmm, Maybe that's why Neofin Blau didn't work well for me. Next time I'll try an Efke film. Anybody have any idea how long this lasts? My bottles are pretty old by now.
     
  10. sandermarijn

    sandermarijn Member

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    Long. I have some closed bottles from years (4?) ago. Sometimes I use one- can't see any decay going on. Just keep to the usual advice of using airtight bottles with not too much air in them. The original bottles are fine of course.
     
  11. Alan Johnson

    Alan Johnson Subscriber

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    From the MSDS it contains both metol and phenidone. Crawley,BJP Dec 16 1960,explained why this combination gives a speed increase.Metol-phenidone-hydroquinone reduces overall contrast and allows the shadows to increase in contrast more by the time normal gammas are reached.
     
  12. RidingWaves

    RidingWaves Member

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    Mine are at least 20, maybe more.
     
  13. Smudger

    Smudger Member

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    I can confirm the Beutler connection : the older packs (glass ampoules) say on the box "nach W.Beutler".
    No idea of age from the packaging,but the leaflet has no film younger than Ilford HP4 -can anyone date the introduction of HP5 ?
    Interestingly, the M.D.C has a time for Fuji Acros in this stuff " Stock -6 minutes". Which would make it the most expensive developer ever..
     
  14. marcmarc

    marcmarc Member

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    I've heard great things about Beutler and I've been tempted to try and mix up a batch of either this or one of the variants listed in The Darkroom Cookbook. I'd find it hard to believe that Rodinal could be replaced, but I've read that Beutler gives even higher accutance. If the Tetenal kit as sold by Freestyle can give me the same or better edge effects as Rodinal 1+100 and give me a reasonable number of developed rolls, I may be inclined to give it a try. I shoot mostly Pan F+ and Acros 100 these days anyway which should work well with this developer.
     
  15. sandermarijn

    sandermarijn Member

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    I've used both and find that indeed Neofin Blau is a tiny bit sharper (to the eyes) and less grainy (surprise surprise) than Rodinal. In the end I preferred the tonality, price and ease of use (in that order) of Rodinal. Neofin Blau to me seems ideal for those wanting to extract the utmost of detail from a 35mm negative.
     
  16. Smudger

    Smudger Member

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    The understanding so far is that NF Blue is a modified Beutler formula for Tetenal.
    A little taste from the leaflet -"a surface developer" -halation and diffusion are greatly reduced,and negatives of the highest degree of definition obtained...the Neofin technique demands short exposures.The speed of the film should be rated 1 to 1.5 stops higher than the time indicated by the manufacturer.Delicate negatives are desirable ".
    I think we could all concur with that sentiment.
    In the absence of any specific advice, I plan to experiment with Fuji Acros,cross-referenced with Rodinal and Xtol ,replenished.
     
  17. michael_r

    michael_r Subscriber

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    Didn't the original Neofin Blau contain catechol? I might be wrong about that. I'd have to go back to the books to be sure. Either way I wouldn't necessarily bother with current Neofin Blau. If you want maximum sharpness, use something like FX-1. For slightly less sharpness and better tonality, try FX-2, or Formulary's TFX-2 if you're using tabular films like Acros. Both FX-1 and (T)FX-2, and Beutler acutance formulas are significantly sharper than Rodinal (which contrary to popular belief is not a true "high" acutance developer, although it is somewhat sharper than mildly diluted solvent developers). These true acutance formuals are also different than Rodinal from a tonality perspective in that they are compensating by nature, give relatively high film speed and are capable of producing pronounced edge effects depending on how they are used.

    So I'd just caution against viewing acutance formulas like FX1/FX2 or Beutler variants as potential substitutes or swaps with Rodinal. They behave quite differently. XTOL, replenished or otherwise, is a different type of developer.
     
  18. Gerald C Koch

    Gerald C Koch Member

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    When I was in college, developing and printing my own film again, I didn't have much money. The Beutler formula was my main developer since it is about the cheapest of them all. My prefered film was Panatomic-X and this combo produced stunning results. It is important to avoid any over-exposure since this will negate the advantage of this developer.
     
  19. sandermarijn

    sandermarijn Member

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    Here is the manual of Neofin Blau, for those who happen to be without. The times I tried worked out a bit long.
     

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  20. ath

    ath Member

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  21. Aron

    Aron Subscriber

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    If anyone is interested, I developed a roll of Delta 3200 (rated at around 1600) in Neofin Blau today. I couldn't find development times for this combo, so I chose to develop for 30 minutes (20 C) in standard dilution (one little bottle of developer plus water to make 500 ml) Neofin Blau with agitation every minute.

    The negatives turned out to print well on grade 2,5 paper. Yes, there is grain at virtually any magnification, however, with Delta 3200 it's better to make the grain prominent (or natural), than mushy. I didn't make a proper test with multiple developers and EIs, because I rarely use this film, but to my eyes, this combination isn't more grainy than with Microphen or Rodinal, but it is quite a bit sharper.