Kodak CN400BW in D-76

[rover]

Has anyone tried this? The Massive Development Chart gives a time of 14 minute with the stock solution. I have two rolls/partial rolls, I don't know what is on them, they may be the perfect test rolls just to see what I get.

So, C-41 BW film processed as traditional BW film. Has anyone done it?

 

[sevo]

I've done it with CN film - where the masking dye does not get removed, which amounts to a 2-3 stop light loss. XP2 (which is maskless) should be fine in a BW process, but CN400BW might have the same problems as CN film.

 

[rover]

You mean a 2-3 stop light loss regarding printing or scanning correct? Is there a way to remove the masking dye as processing step?

 

[sevo]

You mean a 2-3 stop light loss regarding printing or scanning correct? Is there a way to remove the masking dye as processing step?

Right. There must be some way to bleach it without affecting the silver, as organic dyes and silver have rather different sensitivities to various agents, but of course, bleaching the mask is nothing needed or desirable in colour processes, so it does not show up in the usual photochemistry books.

Sevo

 

[Rhodes]

Never tried with D-76, but with rodinal (one hour stand), it didn't come out good! It was like the film was overexposed. Iin the other hand, it worked fine with Ilford XP2 (possibly due to what sevo said)!

 

[Joao]

It ha been done, I tried wit homebrewed paRodinal , results here
http://www.flickr.com/photos/joaofreitas/sets/72157606624905040/
regards
Joao

 

[drewbarb]

I've read here several times about folks running C41 film in traditional developers like this. I suppose if I had a bunch of C41 film lying around and didn't want to pay for processing, I could imagine doing a little experimentation; but beyond trying it as a curiosity, what's the point? The orange mask will always be there (which, IMO, makes this film nearly worthless for traditional printing compared to regular B&W film); and you lose the fine "grain" of this film by running it in chemistry for which is wasn't designed. I guess being dye-based rather than silver-based emulsion it might be easier to scan with some equipment and software; but otherwise I don't see what is to be gained in doing this beyond what look to me to be pretty seriously sub-par negatives.

So forgive me; I'm not trying to be inflammatory or insulting to anyone, just asking a serious question- what's the point in doing this?

 

[sevo]

So forgive me; I'm not trying to be inflammatory or insulting to anyone, just asking a serious question- what's the point in doing this?

Well, I haven't ever "done" it, but it has happened a few times by accident. If you have just loaded some films into the drum and filled up with developer, only to discover a bit too late that one of the discarded cartridge shells reads "C41", it is nice to know that you haven't destroyed it for good...

Sevo