Mixing Pyrocat-HD

[sanking]

Send me a copy of the FAQ whenever you like, or in pieces as you find them or they occur to you.

Meanwhile, Armando and I have created the site.

Have a look at http://www.pyrocat-hd.com

Ken,

Thanks to you and Armando for doing this. It will be great have a lot of information about the Pyrocat formulas in one spot, along with information about methods of development.

Meanwhile, if any of you all have any suggestions as to what specific questions should be in a FAQ please send them along to me by PM. And thanks in advance.

Sandy King

 

[Andrew O'Neill]

Pyrocat-HD has been my main developer for about 8 years now. I always dissolve phenidone in a bit of isopropyl alcohol before adding it to main solution.

 

[CGross]

Send me a copy of the FAQ whenever you like, or in pieces as you find them or they occur to you.

Meanwhile, Armando and I have created the site.

Have a look at http://www.pyrocat-hd.com

This is great!

 

[jgjbowen]

This is great!

Ditto. Thanks!

 

[onnect17]

Ken is giving me credit I don't deserve. He designed the site and got it up and running. I'm just helping with the hosting.
Good job Ken!

Armando.

 

[Philippe Grunchec]

If you need to develop the negative to a high contrast for alternative processes I would recommend a 2+1+100 dilution, or even 3+2+100. The higher percentage of A solution, which is the reducer, will tend to minimize B+F or general stain.

Sandy King

Sandy, do you think I should switch to Pyrocat MC?

 

[sanking]

Sandy, do you think I should switch to Pyrocat MC?

Phillipe,

Pyrocat-HD and -MC are both general purpose developers that give good results with most films and types of agitation. All things being equal -MC gives a tad bit more acutance than -HD. If you like a creamy tonality with LF film, I would recommend -HD, if what you are after is a bit more bite go with -MC.

I base my decision on whether to use one or the other based on the type of agitation. With -HD I use normal or minimal agitation, with -MC I use rotary development with continuous agitation.

Sandy King

 

[Philippe Grunchec]

Thanks, Sandy. As I never use rotary agitation, I think I will stay with HD!

 

[hkcs]

Sandy,


I mixed some Pyrocat-HDC and -MC this evening, so I read the mixing instruction before on Pyrocat-HD.com. The recipe of the HD version mentions 2g/l of potassium-bromide, if it is mixed in water, 1g/l if it's mixed in glycol, and there is none in the HDC version in glycol. Is this intentional?

 

[sanking]

Sandy,


I mixed some Pyrocat-HDC and -MC this evening, so I read the mixing instruction before on Pyrocat-HD.com. The recipe of the HD version mentions 2g/l of potassium-bromide, if it is mixed in water, 1g/l if it's mixed in glycol, and there is none in the HDC version in glycol. Is this intentional?

Yes, it is intentional. The ascorbic acid in the HDC version renders the bromide superfluous. But 1 g/l of bromide won't change much in case you already added it.

Sandy King

 

[hkcs]

Sandy,

Thank you for the quick reply! I left the bromide out as I can put it in any time, if needed. And what about the 1g difference between the water and glycol version of -HD?

hkcs