What was dye transfer for?

[Vivaldi]

There was Technicolor Dye Transfer which was used till mid 70s in USA and late 70s in Italy.

What was Tecnicolor dye transfer for afterwards when they were already filmed in color?

Updates

+1 y

I think Inferno (1980) was also printed by Technicolor Dye Transfer as well because the color looks pretty much like Suspria (1977), which is said to be printed by Technicolor Dye Trnsfer.

[WindAtMyBack]

Probably because different types of mediums have different characteristics. It might be filmed in color, but not all color is the same. The colors in dyes are different than film colors. Different kinds of films also have different color characteristics.

Dyes can also be used to touch up bad spots or to edit the film. For example to removed something in the background that looks out of place.

[Vivaldi]

If they are gonna get dyed, who shoot in color in the first place?

[Vivaldi]

What is the point?

[WindAtMyBack]

Probably because it's a lot cheaper to shoot in color. The final colors are a combination of colors.

I know very little about cinematography, but with regular photography a lot of things can be used to get the final results. Just like black and white film/prints can be touched up in the dark room.

[Vivaldi]

I dont understaind the point of dying something which is already in color?

[WindAtMyBack]

Because film colors are not perfect. Almost none reproduce the original colors perfectly. Plus film makers and photographers don't always want to capture the image perfectly.

If you photograph the exact same scene using different color films like Kodachrome, Ektachrome, Fujichrome, Agfachrome, etc, they will all look different. They tend to bring out different colors. They use different chemicals which produce different results to different colors of light. Kodachrome tends to bring out reds and browns. Ektachrome tends to bring out blues. Fujichrome tends to bring out greens. Agfachrome tends to bring out reds and browns. Some films are also more saturated than others, which can change the appearance. Some are more grainy than others.

Dyes can be made to much more exact colors. So they can be used to touch up the film.

[Vivaldi]

Why does dye transfer not work with black and white films to colorize them?

Why does it either have to be 3 color camera (Technicolor) or a color negative film (Agfacolor, Eastmancolor) to be in color by dye transfer?

Why not just shoot in black and white and colorize it with dye transfer?

[Vivaldi]

Agfacolor may not have dye transfer. Dont know.

Eastmancolor films have Technicolor or Deluxe Color Dye Transfer.

[Vivaldi]

Agfacolor photographes from late 30s look very natural. They dont look dyed.

Vivex Color photographes from 30s look just dyed photographes, unlike Agfacolor photographes. They use a special 3 color camera, and later Dye Transfer. They only look dyed photos as if black and white photographs were just dyed in the lab.

[Vivaldi]

First picture is Vivex Color from 1936

Second picture is Agfacolor from 1937

While first picture looks just dyed second picture looks very natural, not dyed. See the difference.

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[WindAtMyBack]

For some reason my post above got put in the wrong place. It should have been at the end.