In 2012, Regina Walkenborg, a student photographer at the University of Hertfordshire in the UK, created a series of temporary pinhole cameras by placing beverage cans with photo paper. She had forgotten some of them, and someone had stayed for 8 years before someone could find it. What could be the longest photo exposure in history
The picture shows 2,953 curved trajectories of the sun, which rose in nearly a decade of changing seasons. … [It] Faffordbury shows the evolution of the laboratory – the dome of the laboratory’s oldest telescope is visible on the left, while the atmospheric center, built in the middle of the exposure, can be seen from the center to the right.
From the University Press:
“In order to save David after all these years, the film went untouched. It’s a side of luck. I’ve tried this technique twice in the lab before, but the photos were mostly ruined by moisture and photo paper. I do not want to capture a revelation this time. To my surprise, it survived. One of the longest-running manifestations. “