136 Projects and the way the sunlight reflects on the soldiers' armour. In 2018, the Tuscan Polo Museale, (or Museum Authority) decided to tackle the problems linked to updating the lighting system completed in 2000 at the end of a long, 15-year period of restoration work which resolved the serious preservation problems of the Piero della Francesca fresco cycle thanks to a joint commitment from the Environmental, Architectural, Artistic and Historical Heritage Government Department in Arezzo at that time, and the Opificio delle Pietre Dure in Florence with additional collaboration from numerous research institutes, experts, scientists and specialists. When compared with current technological advancements, the system that had been put in place almost 20 years previously, was now obsolete, especially from an energy and maintenance point of view. In 2000, a solution for the lighting in the chapel was found by creating a 2-metre-high oval platform mounted on four vertical struts and fitted with universal joints for adjusting the low voltage halogen lamps with dichroic reflectors installed on them. With the possibilities that came to light thanks to the dawning of LED lighting, the Tuscan Museum Authority set out in search of a new solution that would, in particular, allow them to: recover the chapel's original spatiality, by eliminating the central lighting unit; save energy; facilitate maintenance; improve colour rendering, by alleviating the impact of pictorial shortcomings. 2019 – Arezzo \ Italy iGuzzini was, therefore, invited to sponsor the work: the invitation was accepted because it was fully in line with the Light is Back programme. At the end of a long series of inspections and extensive research that led to the creation of the lighting project by the architect, Antonio Stevan, the Palco luminaire was singled out. It is installed on a Low Voltage track and is one of the most compact on the market though it offers a vast series of optics and installed power, comparable to that normally found on larger projectors. It was precisely these small sizes - in particular, the selected projector with a 62 mm diameter - that made it possible to install a limited number of projectors with 12° and 26° optics and in some Light is back, after restoring light to Leonardo's Last Supper, Giotto's Scrovegni Chapel and works by Tintoretto in the San Rocco school, the spotlight was turned on the great master, Piero della Francesca Comparison between before (to the left) and after (to the right) in the scene were Solomon meets the Queen of Sheba. Perception of the colours and sharpness of the scene itself have been improved thanks to the new lighting. To read the full version of Lighthinking 03 - Urban, fill out the form below.