D76 versus ID11, Are they the same things ?

[Milpool]

Ummmm. Is this a good thing or a bad thing?

Lol I think it's good. It's like if something is shit, it's bad, but if something is the shit, it's good.

 

[gbroadbridge]

Ummmm. Is this a good thing or a bad thing?

It means it's a ripper bonza of a developer.

 

[Augustus Caesar]

Ummmm. Is this a good thing or a bad thing?

Huh? It's great!

 

[MattKing]

Huh? It's great!

But is the dog's bollocks the bee's knees?

 

[Don_ih]

But is the dog's bollocks the bee's knees?

That would be a very small dog

or a very big bee....

 

[chuckroast]

But is the dog's bollocks the bee's knees?

It's the bee's bollocks, duh ...

 

[Alex Benjamin]

Published versions from both manufacturers (dates unknown).

 

[Craig]

Sure looks identical to me!

 

[gbroadbridge]

They're the two I use

 

[Paul Howell]

So if ID 11 and D76 are the same formula who does ILford recommend different times for 1:1 and push, about 20% more for ID 11?

 

[koraks]

My guess: different interpretation of potentially marginally different empirical data.

 

[Paul Howell]

Same film same formula, different times, would Kodak's commercial version with buffers made a -20% difference when diluted or extended development times?

 

[Don_ih]

So if ID 11 and D76 are the same formula who does ILford recommend different times for 1:1 and push, about 20% more for ID 11?

(I was gonna say it's because they were hung over the morning they tested the D76.)

Because commercially they're not identical. Each product contains what the different manufacturers put in. Kodak adds stuff to make it a single powder. Ilford keeps it two. Whatever differences there are a minute. And the weird times Ilford offers for the greater dilutions of the two different products may be a result of those minor differences - ones that only become apparent at the greater dilutions.

 

[Don_ih]

-20% difference when diluted

Going from 15 minutes to 14 minutes is nowhere near 20%. Neither is 10 to 9.5.

 

[Alex Benjamin]

So if ID 11 and D76 are the same formula who does ILford recommend different times for 1:1 and push

Really wonder how they did their tests and what they were aiming for. Some wild differences when comparing the times for Pan F on Ilford's 1993 film development chart. Some of these don't make sense.

 

[Don_ih]

Yeah, and here's the Delta 100 one, again:

And the times go in the opposite direction.

 

[cliveh]

Perhaps other parameters come into play. I have never made up ID11 from powder, but with D76 you have to wait quite a time for the mixture to dissolve before topping up with cold water. Is this the same for ID11?

 

[gbroadbridge]

They're only recommended starting points folks.

Too many variables when home processing for them to be anything else.