Re: Rediscovering colour photography by direct trichromy

In article <45B0598D.A661F9E5@[EMAIL PROTECTED]
>,
Tom Phillips  <nospam777@[EMAIL PROTECTED]
> wrote:

>John -- technicolor was a process used for most early color
>motion picture films through the 1950s, when the expense was
>deemed too great and dye color films began to be used.

Better film speed was a factor too. Technicolor was very slow
and required an obnoxious amount of light.