ID11 Recipe

[kev curry]

I've been looking around for the recipe for ID11 but cant find it. I'm now beginning to wonder if its a commercial secret? I can find the recipe for D76 but my understanding is that in spite of some common misconceptions they are not the same.
I develop in tubes and my times are all down for ID11 so I don't want to change anything, I just want to mix my own chemicals.
Anyone know if the recipe is available?

[IanG]

The published Formulae for D76 and ID-11 are identical, as are Defender 6, Foma FV3, Forte FD20, Foton N12 and a few others.

However there are very minor differences in the commercially available products, these have very little or no effect on normal usage and are tweaks to the buffering for use in replenishment systems.

Ian

[kev curry]

Thanks Ian. Right, so you reckon that I could use all my EI/dev times that I established for Ilfords ID11 without any change?

[IanG]

Should be no problem at all.

Ian

[kev curry]

Cheers Ian

[neil poulsen]

I don't know about this. Take a look at the published recommended development times for both, and they're different for the same film.

As much as I want to support Ilford, I'm redoing my calibrations for D76, because I'll get shorter development times when mixing 1:1. D76 comes across as a stronger developer, so I conclude that D76 will better support expanding contrast.

For example, take a look at the following link.

http://www.ilfordphoto.com/Webfiles/2006216122447.pdf

Ilford recommends developing HP5 Plus (ASA400) for 13 minutes in ID11(1:1) and for 11 minutes in D76(1:1).

[kev curry]

That I think speaks for its self then...they are different! I'd really need to treat D76 as a different developer and carry out new tests accordingly if I wanted to mix my own chems.
Thanks for pointing that out Neil.

[IanG]

I don't know about this. Take a look at the published recommended development times for both, and they're different for the same film.

As much as I want to support Ilford, I'm redoing my calibrations for D76, because I'll get shorter development times when mixing 1:1. D76 comes across as a stronger developer, so I conclude that D76 will better support expanding contrast.

For example, take a look at the following link.

http://www.ilfordphoto.com/Webfiles/2006216122447.pdf

Ilford recommends developing HP5 Plus (ASA400) for 13 minutes in ID11(1:1) and for 11 minutes in D76(1:1).

Ilford & Kodak publish times based on differing criteria so take Neil's comments as a pinch of salt.

In practice they work in the same way, and are interchangeable with each other and the published formulae.

Ian

[kev curry]

When I get through my stock of ID11 I'll mix my own from scratch and see what happens.
Thanks for the input.

[Pete Watkins]

Kev,
I'm getting good results with D-76H home brewed. Used 1-1 with Foma 100 or 200 8 1/2 minutes. Keeps me happy 'till I start messing with Pyrocat again.
Pete.