Formula for ClaytonF76+?

[Keith Tapscott.]

Films and developer notes | Darkroom Solutions

This page contains a comprehensive list of equal films and developers. It also contains notes on current and outdated Kodak films as well as notes and fact sheets for several other developers and films.

darkroom-solutions.com

FA-1027 Film Developer

Developer Film FA-1027 Darkroom Chemical

stores.photoformulary.com

A lot of sales talk in that link.
Does it really yield twice the speed of DDX with very fine but sharp grain?
I would like to see a test to confirm it.

 

[Philippe-Georges]

I don't know what the availability of Clayton's products is in Europe. There are all kinds of restrictions when it comes to shipping liquid chemistry. Here on the East Coast of the U.S. I can get liquid chemistry easily from Freestyle in California with ground shipping but I can't get it from B&H in NY that way. If you can get someone to ship the stuff, do it before the weather gets too cold. Years ago a seller in Germany shipped me some liquid chemistry in the winter. When it got here, it was frozen solid. If I could get an old formula, I would want the one for Edwal FG-7. There are many good formulas for making phenidone based developers. Clayton F76 is indeed very nice but it doesn't keep well. It is more suitable for people who use it up quickly. It is partly for this reason that I keep a nice supply of metol and sodium sulfite. I can make up D-23 any time I need to.

If you are looking for an E.C. based provider, perhaps you can have a look a Bellinifoto.it from Italy (they offer raw chemicals too)...

 

[GLS]

It is rather unexpected if Sigma Aldrich are selling NMP quoting the wrong pH, but it appears that it is OK to leave it out of any homebrew in view of the metaborate.
p8 refers:

https://www.sigmaaldrich.com/GB/en/sds/mm/8.06072?userType=anonymous

Yes I have seen that. It would not be unheard of for the Sigma website to contain errors; in the main those physical properties they quote for compounds they do not determine themselves, but rely on other sources. I cannot say for certain that it is wrong, as they are quoting it for quite a high concentration (10% vs max 2.5% in the Clayton formulation), but an upper value of 10 seems conspicuously high to me for a simple lactam. One possible reason for the high quoted range and upper value is they are accounting for all possible grades of NMP, to include those contaminated with methylamine (either from degradation of NMP, or the manufacturing process); that could perhaps explain it.

 

[Milpool]

A lot of sales talk in that link.
Does it really yield twice the speed of DDX with very fine but sharp grain?
I would like to see a test to confirm it.

That's definitely the most ridiculous and absurd sales pitch for a developer I've read, by far. I guess it will lure some people though.

 

[Marcelo Paniagua]

Films and developer notes | Darkroom Solutions

This page contains a comprehensive list of equal films and developers. It also contains notes on current and outdated Kodak films as well as notes and fact sheets for several other developers and films.

darkroom-solutions.com

FA-1027 Film Developer

Developer Film FA-1027 Darkroom Chemical

stores.photoformulary.com

Yes, FA-1027 description sounds a lot like F76+. Also developing times are awful close to be a coincidence.

 

[Animalcito]

A lot of sales talk in that link.
Does it really yield twice the speed of DDX with very fine but sharp grain?
I would like to see a test to confirm it.

The sales text claims lower fog levels than DDX, resulting in half the exposure time when printing, not when talking the picture itself.
Twice the speed of DDX would be awesome

 

[Keith Tapscott.]

That's definitely the most ridiculous and absurd sales pitch for a developer I've read, by far. I guess it will lure some people though.

Yes. Also does DDX produce higher fog levels than F76 Plus? Perhaps someone who has tried both can answer.

I'm sure the Clayton F76/ 1027 developer is a fine product, but it's unavailable in the UK.

 

[Augustus Caesar]

It involves Silver:

https://prod-images.tcm.com/Master-Profile-Images/ClaytonMoore.jpg?w=1216

 

[John Wiegerink]

It involves Silver:

https://prod-images.tcm.com/Master-Profile-Images/ClaytonMoore.jpg?w=1216

Ahhhh! The only man with the silver bullet. Oh, and a horse called Silver too.

 

[Marcelo Paniagua]

Yes. Also does DDX produce higher fog levels than F76 Plus? Perhaps someone who has tried both can answer.

I'm sure the Clayton F76/ 1027 developer is a fine product, but it's unavailable in the UK.

Never tried DDX but F76+ allowed me to use Aviphot 200 @200. Tried that on D-76 and some other developers I use normally use and couldn't because of the fog level (since film is expired).

Still, I agree it does sounds like publicity gimmick

 

[Keith Tapscott.]

already gathered that it is identical to D76 but uses phenidone in place of metol; just need to know in what ratio. 1:10 is my first guess.

Just a thought. Instead of trying to make a highly concentrated developer, try the Ilford PQ fine grain developer instead.

Sodium sulphite 100 grams
Hydroquinone 5 grams
Borax 2 grams
Boric acid 1 gram
Potassium bromide 1 gram
Phenidone 0.2 gram
Water to make 1 litre.

The developer is said to replicate standard MQ Borax developers, but with greater pH stability and consistency when stored for long periods.

Start with the times given for ID11 at the same dilutions. This formula is neither Microphen or Autophen, but simply a PQ equivalent to ID11.(D76)

 

[Alan Johnson]

The formulas given in posts 6 and 36 contain about 5x the amount of sulfite as F76+ 1+9 as can be deduced from the msds mentioned in post 11 so they are likely to be detectably more solvent than F76+ as it is often used. Also the pH of F76+ concentrate from the msds is 9.7, quite a bit higher than is likely for the boric acid buffered formulas in posts 6 and 36 which appear to be phenidone versions close to D-76 rather than F76+.