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Two Red Layers and no Blue?
Now I may be completely off, but the article states: In Kodak films the top layer is red sensitive. Beneath this layer is a yellow filter, made of dyes, or, more commonly, collodial silver. This filters out the blue light to which the rest of the layers are also sensitive, due to the intrinsic blue sensitivity of silver halides. The second layer is green sensitive and the third is red sensitive. On some C-41 films, multiple layers of each color, each with different speeds and contrasts, are coated. This helps to increase the film's exposure latitude --PedroDaGr8 23:40, 19 April 2007 (UTC)
No grain in c41 b/w film??
There are some very POV statements in this article.
Commercially produced prints from these brands of film will often have a colored hue to them, but printed on standard black and white papers they are indistinguishable from images made using standard black and white films, except for the absence of grain in the image.
The author then goes on to suggest that the 400-rated films can be exposed at ISO 800 and still "yield usable results". That sounds like marketing-boo-hoo to me.
The first statement is outright laughable. Subjectively stating that the grain is very/extremely low is one thing, claiming that there is no grain whatsoever is quite another.
dsandlund 19:11, January 21 2006 (CET)
poor quality of article
This article should be rewritten. Apart from the poor language and an incoherent structure, there are factual errors - e.g. gelatin isn't used as a film base, it is used as the main ingredient (well, binder ingredient) of the emulsion.
I've made a few changes.
As to the 400 being exposed @ 800, many films can be, but it may be better to say that the films typically have at least a stop of exposure latitude.
Also, on the grain issue, C-41 technically doesn't have grain, as there's no silver. The image is formed of "dye clouds", and, hence, "grain" usually manifests itself as foggy patches of color; though this is not true in all cases ...
-htmlguru4242 (a.k.a. htmlguru4224)
Unless I've not read the article as carefully as I should, there is no explanation (certainly not in introduction) as to why the process was termed/named "C-41" David Ruben Talk 23:00, 8 July 2006 (UTC)
It came after C-22. I don't know about C-23 through C-40. The C-22 page says very little about the actual process. Kodachrome processes start with K, such as K-14, Ektachrome with E, such as E-4 and E-6. Gah4 (talk) 20:49, 22 September 2011 (UTC)