The PCS Darkroom Formulary - pdf booklet

[ajmiller]

I have a 35 page booklet which contains formulae for both colour and black and white processing solutions.
I'm not sure of the year but the references at the back cite a book from 1982 so it looks like it could be from after that.
I can't find any copyright on it except to say it was written by 'R.C. Potts M.Sc. and published by Photo Chemical Supplies of Middlesex.'
If anyone is interested I've scanned a copy and posted it to the link below which is a Dropbox account.
I'm not sure if there's anything new in it that most of you 'home-brewers' aren't aware of already but here it is:-

http://dl.dropbox.com/u/18474121/PCS..._Formulary.pdf

It's just under 3MB and a pdf.

Any problems downloading let me know.

Enjoy!

- Tony

[Ian Grant]

Quite interesting Tony. Nothing unusual or new but for it's time and even now still a good collection of useful formulae.

Ian

[Trask]

I had no trouble downloading it. Thanks for making it available.

[delphine]

Thank you for sharing. In the print dev formulaes, is the No 37 the receipe of the PQ developer sold off the shelve?
I noticed in the film dev section that MQ and PQ was commonly used. What does it stand for?

[Mustafa Umut Sarac]

delphine ,

I think they stand for phenidone hydroquinone and metol hydroquinone.

Umut

[Ian Grant]

MQ - Metol Hydroquinone and PQ - Phenidone Hydroquinone.

ID-62 is a powder version of PQ Universal the commercial form uses Potassium Carbonate and Hydrodie instead of Sodium Carbonate to allow a higher concentratiom of th stock developer. The level of Bromide is increased to 4.5 gm for warmer tones and the Benzotriazole left out (ID-78).

Ian

[Tim Gray]

Thanks.

[analog what is that?]

Thanks mate.

[lensman_nh]

delphine ,

I think they stand for phenidone hydroquinone and metol hydroquinone.

Umut

Correct.

As an aside the Q is for Quinol, which is the original trade name Kodak used for hydroquinone.

I'm full of useless facts today.

[Photo Engineer]

The color formulas are, as usual, close but no cigar! They will give usable images but the images may not be optimum depending on the film.

PE