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Thread: replacement for tetenal neofinBlue

  1. #11

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    Sep 2012
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    Re: replacement for tetenal neofinBlue

    Last version of tfdc mentions its use in hc110 and ddx and works as a sequestering agent, yes, that being no secret, bit it seems that it has a convenient effect in avoiding silver replating again in the emulsion avoiding phisical development.
    The level that this mechanism is important on a non solvent high acutance developer maybe marginal...

  2. #12

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    Re: replacement for tetenal neofinBlue

    well... in hc-110 was pvp, i do not know now... but the effect is supposed to be the same!

  3. #13

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    Re: replacement for tetenal neofinBlue

    Quote Originally Posted by mihag View Post
    ADOX FX-39 is said to be based on NEOFIN RED: https://www.adox.de/Photo/adox-film-...er/adox-fx-39/
    so what is the difference between neofin Red and Blue in termes of chemistry ??? any info ????

  4. #14

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    Re: replacement for tetenal neofinBlue

    Quote Originally Posted by ruilourosa View Post
    Last version of tfdc mentions its use in hc110 and ddx and works as a sequestering agent, yes, that being no secret, bit it seems that it has a convenient effect in avoiding silver replating again in the emulsion avoiding phisical development.
    The level that this mechanism is important on a non solvent high acutance developer maybe marginal...
    If I was seeking to make a [type] of phiyscal developer for film would this be practical ...?? by adding P.Ioded and table salt -or magnisium salt ??

  5. #15

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    Re: replacement for tetenal neofinBlue

    Quote Originally Posted by joho View Post
    so what is the difference between neofin Red and Blue in termes of chemistry ??? any info ????
    I trired lookig up ADOX FX-39 as to its make up but did not find any formulas.

  6. #16

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    Re: replacement for tetenal neofinBlue

    FX-39 is an MQ-carbonate developer, likely an “evolution” of the PQ FX-37.

  7. #17

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    3,217

    Re: replacement for tetenal neofinBlue

    Box of Neofin Blau circa 1974 from Adolf Gasser (SFO) $3.49.
    Click image for larger version. 

Name:	Neofin Blau.jpg 
Views:	7 
Size:	57.0 KB 
ID:	226422

    What's inside.
    Click image for larger version. 

Name:	Neofin Blau vials.jpg 
Views:	16 
Size:	58.7 KB 
ID:	226423


    If there is any interest. curiosity, the film development/info sheet can be scanned then posted.

    Bernice

  8. #18

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    Sep 2011
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    Re: replacement for tetenal neofinBlue

    Quote Originally Posted by joho View Post
    so what is the difference between neofin Red and Blue in termes of chemistry ??? any info ????
    The RED has been discontinued years ago. It was formulated for faster films (above ISO 200).
    Linhof Kardan re

  9. #19

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    Re: replacement for tetenal neofinBlue

    Quote Originally Posted by Bernice Loui View Post
    Box of Neofin Blau circa 1974 from Adolf Gasser (SFO) $3.49.
    Click image for larger version. 

Name:	Neofin Blau.jpg 
Views:	7 
Size:	57.0 KB 
ID:	226422

    What's inside.
    Click image for larger version. 

Name:	Neofin Blau vials.jpg 
Views:	16 
Size:	58.7 KB 
ID:	226423


    If there is any interest. curiosity, the film development/info sheet can be scanned then posted.

    Bernice
    if you have the time it would be appreciated...

  10. #20

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    Sep 2012
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    Re: replacement for tetenal neofinBlue

    Quote Originally Posted by joho View Post
    If I was seeking to make a [type] of phiyscal developer for film would this be practical ...?? by adding P.Ioded and table salt -or magnisium salt ??

    Fx1 has this homeopatic amount of iodide that Crawley said to be paramount to the acutance mechanism...

    Never heard of magnesium but if you add sodium cloride to some developers you increase fine grain effect.... Microdol seems to work that way. I cannot confirm that this could work on all developers. But i would try .... Maybe rodinal or fx2...

    One of the 2 neofins was catechol based the other was close to beutler metol formula

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