Development methods ...

[jjprat]

Hi everybody again!!!

I've just some questions about development methods. I've heard something about:

- Development 8:4:5 (or something like this): (rate at 400x8=3200, dilute at 1:4 and develop x5 normal time. That's why it's called 8:4:5 (I suppose ) What do you get using this method? Is it correct? Does anybody have experience using it?

- And what about developing with D-23 and leave it there during more than a day? What are the results? Any clue or experience?

Thank you very much for your help!!! And I'm so sorry about asking all this (silly?) questions,

jxprat

 

[Christopher Walrath]

What film?
What EI?
What developer?
What desired result?
We cannot answer your questions without some more basic info. You're asking about steps three on up when we do not know what led you to that point. So back up a little and we will all be more than happy to offer suggestions. We just need to know what we are suggesting about.

 

[jjprat]

What film?
What EI?
What developer?
What desired result?
We cannot answer your questions without some more basic info. You're asking about steps three on up when we do not know what led you to that point. So back up a little and we will all be more than happy to offer suggestions. We just need to know what we are suggesting about.

Dear Christopher:

I think your questions doesn't matter neither I cannot answer them. I'm asking something about I don't know anything, I just read something quickly. So, if anybody knows something about it, just write some lines. We'll have much information about these experimental developing methods.

Thanks,

jxprat

 

[bdial]

The questions do matter, because what you get depends on what film, what its exposure was, and the developer to be used. Change any of those and you get a different result. There are too many variables to answer the question "what will the result be?". The choice of film, developer and how long to process is always dependant on what the desired result is.

That said, some very general prediction is possible. For example, if you were to choose a developer like Rodinal diluted 1:4, with a film like Tri-X under exposed by 3 stops and 5 times what might be called a "normal" time, I would expect extremely contrasty grainy negatives. Rodinal is supplied as a concentrate and is meant to be used a dilutions more like 1:25 or 1:50, and even 1:100, at 1:4 it would be a very strong brew.

OTH, a developer like Xtol is mixed from powder to a working solution and is meant to be used straight or 1:1, at 1:4 there would barely be enough develping agent to function. And developing for 5 times a "normal' time might very well not be long enough. Offhand I would expect thin negatives with low contrast.

 

[jjprat]

The questions do matter, because what you get depends on what film, what its exposure was, and the developer to be used. Change any of those and you get a different result. There are too many variables to answer the question "what will the result be?". The choice of film, developer and how long to process is always dependant on what the desired result is.

That said, some very general prediction is possible. For example, if you were to choose a developer like Rodinal diluted 1:4, with a film like Tri-X under exposed by 3 stops and 5 times what might be called a "normal" time, I would expect extremely contrasty grainy negatives. Rodinal is supplied as a concentrate and is meant to be used a dilutions more like 1:25 or 1:50, and even 1:100, at 1:4 it would be a very strong brew.

OTH, a developer like Xtol is mixed from powder to a working solution and is meant to be used straight or 1:1, at 1:4 there would barely be enough develping agent to function. And developing for 5 times a "normal' time might very well not be long enough. Offhand I would expect thin negatives with low contrast.

Thank you bdial.

What I meant by "doesn't matter" is I don't have any idea about this because I never did it before, and what I've read, just talk about "experimentation" (get a film, use a developer and keep trying until you get something you want/like). That's all. Now, I'm asking to you (forum) about if anybody has any experience on this (or other) experimentation methods.

Thanks again to all,

jxprat