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C-41 to make kodak 16mm color negatives BW


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#1 Richardson Leao

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Posted 18 September 2006 - 10:08 AM

Hi,

I am thinking about a change of pace in my new film project and the film, initialy in BW, becomes color after a transformation of the main character. Anyway, I want the part thet he is strugling with his new persona... to have color and BW at different levels, I mean, having random color/BW shots. I remember that when I first tried to develop 16mm negatives using c41 (instead of ECN-ii), some of the rolls become with very poor color, nearly bw. I would love to repeat it but I have no idea where to start:

So, to simplify, the main question, how to make a color negative BW?

Is the developer time (or temperature)?
Is the bleach time?
Any suggestions?

many thanks
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#2 grantsmith

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Posted 18 September 2006 - 10:44 AM

why not try a B+W developer

or B+W stock

or if you are editing on computer use a plug in like Digital Film Lab to change the colour throughout the film
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#3 Richardson Leao

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Posted 18 September 2006 - 11:55 PM

thanks for the suggestion, but I was thinking about some unpredictability and some 'color spills' for example, half frame colored half BW. What happen to a c41 negative in BW developer? do I have to use 37C if I use a BW developer?

I understand that C41 developer has the dye coupler and if I develop it in a BW developer, I'll get a dye cloud over the image, is it right?

So, if I develop the whole film in BW developer (e.g. D19), than immerse half of it in a C41 developer (for a short time) then bleah and fix, would it work?

Any suggestions are more than welcome.

why not try a B+W developer

or B+W stock

or if you are editing on computer use a plug in like Digital Film Lab to change the colour throughout the film


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#4 John Pytlak RIP

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Posted 22 September 2006 - 08:25 AM

thanks for the suggestion, but I was thinking about some unpredictability and some 'color spills' for example, half frame colored half BW. What happen to a c41 negative in BW developer? do I have to use 37C if I use a BW developer?

I understand that C41 developer has the dye coupler and if I develop it in a BW developer, I'll get a dye cloud over the image, is it right?

So, if I develop the whole film in BW developer (e.g. D19), than immerse half of it in a C41 developer (for a short time) then bleah and fix, would it work?

Any suggestions are more than welcome.


Processing a color negative in a B&W developer will yield a silver image, and the couplers will not form colored dyes. But there may be some coloration if you try to print/transfer the image, as the colored couplers may change unpredictably in a B&W process -- it is not a recommended standard process.

I suggest you process the film normally (ECN-2), and do your color manipulation in post production.
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