Tetenal Neofin Rot (Red).. What is this?

Discussion in 'B&W: Film, Paper, Chemistry' started by digic, Jan 8, 2013.

  1. digic

    digic Member

    Messages:
    23
    Joined:
    Apr 5, 2012
    Location:
    Norway
    Shooter:
    Multi Format
    I was given an unused box of Tetenal Neofin Rot (thats Red in german), containing 5 glass vials of liquid...

    Is this a BW or a C41 developing set? Why would one use it? I have no idea.. The instructions were only in german.
     
  2. crazy_ahqmed

    crazy_ahqmed Member

    Messages:
    6
    Joined:
    Aug 24, 2006
    Location:
    Melbourne
    Shooter:
    Medium Format
    It's a Beutler type developer for medium to fast B&W films. It gives very high acutance but can be a little on the grainy side.

    It has been discontinued for about 10 years now. The Neofin Blau version is still available and gives you finer grain.
     
  3. BMbikerider

    BMbikerider Member

    Messages:
    865
    Joined:
    Jul 24, 2012
    Location:
    County Durha
    Shooter:
    35mm
    I do believe that the neofin Blue (Blau) was intended for slow to medium speed films and should not be used for films over 125iso
     
  4. Jojje

    Jojje Member

    Messages:
    110
    Joined:
    Sep 4, 2006
    Location:
    Finland
    Shooter:
    Multi Format
    Rot is supposed to be used for medium to high speed films - gives shorter development times than blau. Red variety has been out of production for a long time but do not worry the stuff will be quite o.k. My long time favourite. Quite sharp and can handle wide contrast range without speed loss.
     
  5. mfohl

    mfohl Subscriber

    Messages:
    504
    Joined:
    Jan 10, 2007
    Location:
    Westerville,
    Shooter:
    Multi Format
    Is there an alternate version available (of either or both)? Like from Freestyle or Photographers Formulary?
     
  6. Gerald C Koch

    Gerald C Koch Member

    Messages:
    6,466
    Joined:
    Jul 12, 2010
    Location:
    Southern USA
    Shooter:
    Multi Format
    I know of no alternative to Neofin Red. Neofin Blue is still made by Tetenal. It is an acutance developer. The closest developer to it is probably the Beutler formula or Ethol TEC. Photographer's Formulary sells the Beutler formula under the name Neofin Blue. This is confusing to people for the two developers are NOT the same if you look at the MSDS. The results are however somewhat similar.

    Neofin Blue demands the upmost in care from the user from correct exposure to care in development. Failure to do so will result in poor quality negatives. Tetenal intructions are quite specific in this respect. So for anyone who is sloppy about such things as developer temperature, agitation, etc. then this developer is not for you. Used with a fine grain slow film (<= ISO 50) the results are spectacular. I might add that the developer gives an increase in speed depending on the particular film. So ignore the box speed.
     
  7. AgX

    AgX Member

    Messages:
    12,361
    Joined:
    Apr 5, 2007
    Location:
    Germany
    Shooter:
    Multi Format
  8. pcyco

    pcyco Subscriber

    Messages:
    435
    Joined:
    Jul 18, 2007
    Location:
    near vienna
    Shooter:
    Multi Format
    hallo

    i also found some neofin rot some dys ago in the darkroom of an phtographer who has died 10 years ago.

    i will give it a try.
    --
    thomas
     
  9. mfohl

    mfohl Subscriber

    Messages:
    504
    Joined:
    Jan 10, 2007
    Location:
    Westerville,
    Shooter:
    Multi Format
  10. AgX

    AgX Member

    Messages:
    12,361
    Joined:
    Apr 5, 2007
    Location:
    Germany
    Shooter:
    Multi Format
    That data sheet shares data for three different developers.

    Those figures indicate the rythm of inverting the processing tank (numbers of inversion per time unit), in this case indicated as times between inversions. Thus:

    "1min" means one inversion every minute,
    "3sec" means one inversion every 3 seconds
     
  11. mr rusty

    mr rusty Subscriber

    Messages:
    763
    Joined:
    Sep 7, 2009
    Location:
    lancashire,
    Shooter:
    Medium Format
    yes, I have two glass phials of "rot" as well. Not sure yet how I am going to use it. Any suggestions considering it will be virtually a one off experiment? Film recommendations etc?
     
  12. digic

    digic Member

    Messages:
    23
    Joined:
    Apr 5, 2012
    Location:
    Norway
    Shooter:
    Multi Format
    Thats a lot of good responses!