These tests helped me establish how many sheets of coloured acetate I would need to layer together to build a completely opaque collection. I need approximately 5 sheets per colour to create a substantial chroma spectrum.
I kept building the layers of acetate until I got to a point of overlap. The added green to the red and yellow sections significantly outlined the beginning of a void space developing.
Once I added the final blue layers, the middle void space became very prevalent. The mid range of colours are mainly hidden behind the dark space, the red and blue end points are very vivid.