Umberto CICERI (1961) Diptych : "Hypertrait - blue" & "Hypertrait - yellow" : "Hypertrait - blue", "Square millimeter, Sync n 1552". Optical lens, stainless steel, wood, Ultrachrome K3 inkjet on photographic paper, 2022. Back label and countersigned. H. 110 x 110 cm "Hypertrait - yellow", "Square millimeter, Sync n 1553". "Optical lens, stainless steel, wood, Ultrachrome K3 inkjet on photographic paper, 2022. Back label and countersigned. H. 110 x 110 cm Provenance: Swiss private collection Swiss private collection Reference number: A certificate of authenticity from the artist will be given to the buyer. Note: For twenty-five years, Umberto Ciceri conducted research into neurophysiology, visual perception and the physics of colours, patterns and textures. This scientific basis underpins his artistic approach. He has developed an innovative method, called Hypertrait, based on the use of specific optical lenses and interference patterns. Using this technique, Ciceri creates works that establish a dynamic interaction with the viewer, where each shift in the gaze generates another visual experience.