If my understandings of the E-6 process are correct, there are two
developing processes and a bleaching process followed by a redevelopment
process. The first development process develops the latent image on the
transparency film as a black and white image; the second development process
adds the color. At this stage in the game the film contains a color
negative image. It is then bleached and redeveloped which reverses the
image and transforms it from a negative color image to a positive color
image.
To do what you suggest, it would have to take place after the second
developer and before the bleaching process. At that point there would need
to be some sort of permanent fixing process to fix the negative color image
on the film. I do not know if it is possible to insert such a fixing
process into that stage of the process or how it would be done. It just
might be the case that the existing image at that stage in the game might be
too fragile to permanently fix or there may not be appropriate fixers to do
it. I do think it is possible to do this after the first developer when the
negative image is black and white.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Michael Moore
Sent: Monday, January 15, 2001 4:07 PM
To: [EMAIL PROTECTED]
Subject: Re: filmscanners: orange mask
Perhaps a silly question, but then again, the only silly or stupid question
is the
one you don't ask.... This group seems to be fairly proficient in the
technical
sides of both film scanning and film processing... The question.. would it
not be
possible to use an E-6 process film as a neg film without the orange mask...
It has
been many years since I processed transparency film, but if I recall, there
are two
developers, one to develop the latent image, the other to effect the
reversal... so
why not take it to the first developer stage... or maybe C-41 would work...
I don't
know and don't have the tech books anymore to look it up... just a thought
Mike Moore
Gordon Tassi wrote:
> If I am not mistaken, there seems to be a drift on the part of
manufacturers to
> provide film stock that will be usable for both digital and paper
processing.
> Kodak Supra has been portrayed as such a film. Considering the
capabilities of
> digital technology, it seems to me that the primary adjustments will be to
> minimize grain size and the ability of a scanner to neutralize the orange
masks
> required for paper processes. As long as there is a film market, it seems
that
> the prudent move for a manufacturer would be to optimize their films for
both
> the film and digital markets for economic purposes (theirs and ours).
>
> Most of us have had to burn and dodge, adjust exposure time, and mess with
color
> balance to achieve the results we wanted when developing prints. Unless
we take
> the perfect photo that needs no tweaking or croping, we will have to
adjust
> scans in the same ways. Maybe the scanner industry has to put more time
and
> effort into optimizing the ability to scan film stock rather than
expecting the
> film industry to adjust to the scanners.
>
> Gordon
>
> Laurie Solomon wrote:
>
> > There is no reason why said negative films could not be designed to be
> > optimized for digital uses only ... Now such a thing may very well be
> > impractical but it is not
> > impossible or illogical.
