Beutler Pyro

[Auroraua]

When it says Beutler-Pyro and dilution 10+10+978+2
what does that mean?
http://www.digitaltruth.com/devchart.php?Film=&Developer=Beutler&mdc=Search&TempUnits=C

Also would you know a time for Foma 200?
What is the best way to calculate that?
Even just for Beutler and not the Beutler Pyro combination

 

[Auroraua]

Can someone explain the benefits of doing that.

 

[RobC]

just follow the instructions which come with the developer

 

[Ian Grant]

I have the PDF somewhere with the Beutler-Pro formula, it was really just the authors experimental developer. It's not actually a Willie Beutler developer.

The Will Beutler developer is a high acutance formula, it's not fine grained.

Ian

 

[RobC]

it means 10 of solution A, 10 of solution B, 978 of water and 2 of solution C.

A,B and C are listed in the fomula.

 

[Ian Grant]

it means 10 of solution A, 10 of solution B, 978 of water and 2 of solution C.

A,B and C are listed in the fomula.

It actually means take some water say 500ml add 20ml A then mix, add 20ml B and mix, add the 2ml of C then make up to 1 liltre with Water. If you mix the concentrates of Part A and B together before adding water you'll get oxidation of the Pyro,

Ian

 

[RobC]

It actually means take some water say 500ml add 20ml A then mix, add 20ml B and mix, add the 2ml of C then make up to 1 liltre with Water. If you mix the concentrates of Part A and B together before adding water you'll get oxidation of the Pyro,

Ian

http://www.largeformatphotography.i...ferent-formula&p=955174&viewfull=1#post955174

20ml ???

And even above link doesn't look right.

 

[Ian Grant]

http://www.largeformatphotography.i...ferent-formula&p=955174&viewfull=1#post955174

20ml ???

There's two different suggested dilutions..

Ian

 

[Gerald C Koch]

I was not able to find the formula but it appears to contain ammonium thiosulfate which can cause severe fogging with some emulsions.

Just what the world needs another pyro developer.

 

[Auroraua]

I wanted to mix up Beutler from scratch and then came across saw this formula and I assumed it is referring to the PMK
http://stores.photoformulary.com/pmk-pyro-metol-kodalk-liquid-or-dry/
or are they referring to:
http://stores.photoformulary.com/pyrocat-hd-dry-or-liquid/
or even some other Pyro developer.

 

[Auroraua]

From what I gathered Beutler is for fine grained film (lower than 125 ISO).

 

[RobC]

From what I gathered Beutler is for fine grained film (lower than 125 ISO).

Please show the formula you have for "Beutler", and tell us where you found the formula. Beutler like may people made many different formulas so we have no idea what yoou're talking about unless you show us the actual formula.

In photograhers formulary you can view the info / datasheets for the products which tell you what the chemicals are are and how to use them.

Pyro can mean Pyrogallol or it can mean Pyrocatechin. You must be very specific when asking about formulas.

 

[Auroraua]

http://www.jackspcs.com/fdnb.htm


SOLUTION A
Water 120F/48C - 750 g
Metol 10g
Sodium Sulfite 50 g
Cold water to make one liter


SOLUTION B
Water 120F/48C - 750 g
Sodium Carbonate anhy 50 g
Cold water to make one liter

Regarding Pyro I don´t know - as I just saw this combination on Digital truth under Beutler and wondered what it is.
I will just omit it and go for Beutler.
Has anyone tried Beutler and Orwo NP15 or Orwo NP20? - I have a fair amount of these and wanted to try it in Beutler.

 

[RobC]

that isn't a pyro developer. Its Neofin Blue which is completely different than a pyro developer.

 

[Ian Grant]

http://www.jackspcs.com/fdnb.htm


SOLUTION A
Water 120F/48C - 750 g
Metol 10g
Sodium Sulfite 50 g
Cold water to make one liter


SOLUTION B
Water 120F/48C - 750 g
Sodium Carbonate anhy 50 g
Cold water to make one liter

Regarding Pyro I don´t know - as I just saw this combination on Digital truth under Beutler and wondered what it is.
I will just omit it and go for Beutler.
Has anyone tried Beutler and Orwo NP15 or Orwo NP20? - I have a fair amount of these and wanted to try it in Beutler.

Agfa/Orwo 15 and 20 are Cine developers, the first for Cine negatives, the second for Cine positives and also papers, nit ideal for normal use as they aren't fine grain developers.

Ian

 

[RobC]

The massive development chart is full of inaccuracies and badly presented information.

The 10+10+978+2 are supposed to be ratios but the way its presented is meaningless unless you know what it means already already.

For the Neofin Blue formula you have given the ratios would be...

75 parts of water + 10 parts of A + 10 parts of B + 2 parts of C + 5 parts of water. The much more meaningful instructions are found in the web link you gave which clearly says:

750ml of water + 100ml of A + 100ml of B + water to make 1000ml in total.

I don't think Beutler-Pyro is a commercially available developer.

With formulas and working solutions the chemicals should be listed in the order they are meant to be added in, and that includes the water.