Re: Monobaths

Pascal MIELE (miele@ccr.jussieu.fr)
Wed, 8 Nov 1995 19:28:27 +0100

>Does anyone have any experience with monobaths (developer+fixer in the same
>solution)? I ran across the book titled the Monobath Manual, and the
>concept looked interesting.
>
>Tom

=46rom Chenz in PHOTOLOGIE No 13 1983 (in french)

GOOD
The Monobath is not only one bath for all but it's very independant from
temperature, agitation and time (a minimum and no maximum).
the temperature change only the curve in the light

BAD
The formula is good for ONE film and ONE contrast.
No resplenishment

My documentation is old (1983) it's a monobath for the Tri-X
Grain like D76
Speed 400

Haist formula:
Phenidone 4 g
Hydroquinone 12 g
Sulfite 50 g
Hypo 100 g
Soude (NaOH) 4 g

Contrast change with Sulfite/Soude.
Here Contrast Index =3D 0,66
with sulfite 60 g CI =3D 0,85 (with grain)

capacity 10 films / liters time 5 mn 20=B0

if necessary other formulas, but this one is the good one.

Pascal MIELE