Well, from technology used to color film from the past, here's an idea of how NASA is using tech to get extremely high definition views of the international space station.
Like I would have two Pentax K1000s or two Cannon AE1s, whichever one, I would put black and white film in one, color film in another, so I can compare the shots.
With the arrival of color films, Butler realized he could put a subject in front of a specific color, then remove that exact color to isolate a subject from its background.