Does stand development work like this?

[Jodad]

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Hi Guys,

Can you help me out and let me know if I’ve got this right please?

My understanding is that with semi stand development (one turn of the tank at the midpoint of the development time) the duration that the film is in the developer depends on the developer itself (and the dilution) rather than the film and speed (pushed or not). Generally.

 

I tried stand development with a roll of 120 that I had preloaded into a tank months ago and never gotten round to developing. I totally forgot what the film was so I figured, based on what I remembered of some reading I did in the past, that stand development would solve that. I did it in HC110 for 45 mins with a turn halfway.

It developed the film nicely.

I was thinking, since the development time depends on the developer and not the film/speed then:

1) If I have a multi reel tank, I can put in a variety of B&W films of different brands with different box speeds and/or pushed/pulled speeds and they should all develop fine (assuming no issued with banding and streaking etc.) right?

And,

2) If the answer to the above is a "YES", that I can develop any combination of B&W films at (almost) any combination of ISOs then, I guess that I could develop a single roll where some of the frames were shot at box and other frames pushed and others pulled perhaps.

 

Am I right with the two statements I have made above?

 

[Bobitybob]

That's what I have found, but I use Rodinal 1:100 and this is now virtually the only method I use for B&W due to it's versatility.  Not withstanding the normal differences in contrast, grain etc that you will get between different films and speeds then the answer to your questions is yes.  I would experiment a little and see how it goes.  You may also find this of interest http://jbhildebrand.com/2011/tutorials/workflow-tutorial-2-stand-development-with-rodinal/, which although about Rodinal it does answer you questions.

 

Hope that's helpful

[pico]

I was thinking, since the development time depends on the developer and not the film/speed then:

1) If I have a multi reel tank, I can put in a variety of B&W films of different brands with different box speeds and/or pushed/pulled speeds and they should all develop fine (assuming no issued with banding and streaking etc.) right?

 

Unfortunately, that's not right. Proper exposure for shadows must be made. Think of stand development as something like a completion process where the film develops as much as it can until developer becomes exhausted, while denser areas such as highlights exhaust earlier and rather self-mask.

Edited July 31, 2018 by pico

[Jodad]

Unfortunately, that's not right. Proper exposure for shadows must be made. Think of stand development as something like a completion process where the film develops as much as it can until developer becomes exhausted, while denser areas such as highlights exhaust earlier and rather self-mask.

 

How about Diafine. Think that might work.

 

Well anyway, I'm running an experiment now with a roll shot at a bunch of ISO values. Will test it with HC110 which is what i have and soon ill order some Diafine and try it with that :0

Will report back here when the first experiment is developed.

[pico]

How about Diafine. Think that might work.

 

I have used two-part developers. The first step is to saturate the emulsion and the second develops from the saturated emulsion to a completion process. While some people think this produces a 'pushed' ISO, it remains to look at the final outcome and I do not trust any of the metrics employed. Some people simply like over-developed film. Good for them. As it regards suppressed highlights, the court is not accepting arguments.

 

The only virtue of two-part developers is that they do, in fact, develop various films in the same time/temperature regardless of the outcomes. I think most of us care about outcomes.

 

Edited August 3, 2018 by pico