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...
well... in hc-110 was pvp, i do not know now... but the effect is supposed to be the same!
so what is the difference between neofin Red and Blue in termes of chemistry ??? any info ????Originally Posted by mihag
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 ??
I trired lookig up ADOX FX-39 as to its make up but did not find any formulas.
FX-39 is an MQ-carbonate developer, likely an “evolution” of the PQ FX-37.
Box of Neofin Blau circa 1974 from Adolf Gasser (SFO) $3.49.
What's inside.
If there is any interest. curiosity, the film development/info sheet can be scanned then posted.
Bernice
The RED has been discontinued years ago. It was formulated for faster films (above ISO 200).
Linhof Kardan re
if you have the time it would be appreciated...Box of Neofin Blau circa 1974 from Adolf Gasser (SFO) $3.49.
What's inside.
If there is any interest. curiosity, the film development/info sheet can be scanned then posted.
Bernice
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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