In 1907, the Lumière brothers marketed autochrome plates that enabled colours to be captured in one shot. The basis remained the same but, instead of using three separate filters, they combined them to form a constellation of little transparent green, orange and violet dots fixed directly on the photographic plate. These unique and fragile images had to be looked at as slides. The freshness of the colours is still surprising today.

It should be pointed out that the principle of decomposing light using coloured filters and recomposing the colours in the printing process is still the mainstay of photography in the digital age. A digital captor has red, green and blue filters. The addition of these three colours in equal doses reconstitutes white light.
In addition, our current printers recompose the colour subject using inks of three complementary colours to red, green, blue: cyan, magenta and yellow. The addition of all three in equal doses reconstitutes black.