First registration: magenta.
In the slit-lamp light, the eye admits no metaphor. The iris is a physical document — striated, asymmetric, signed by birth. We do not photograph it. We mint it. The first pass of the plate lays down the cancellation pink: UV-reactive ink under examiner's lamp. Wealth, before it is counted, is a colour you have to tilt a card to see.
λ 522 nm — pass 01