Photographer Michael Wesely keeps its shutters open up to three years, claiming he could as well go on indefinitely.
Taking the longest exposures he’s able to capture not just sun-movements (well, earth-around-sun), but also totally anthropic gestures such as the re construction of the MOMA New York (34 months from 2004), the redevelopment of Potsdamer Platz in Berlin (’97 to ’99), or the micro movements in an office, from July 1996 to July 1997.
The evidence of the passing of time is stunning: the older areas (longer subjects of the exposure) appear darker, while the newer mark ghostly traces.
I find amazing just to realize that dozen of his works are slowly taking shape around the world, continuosly adding traces, colours, stripes and in the end, time to the films.
If you are intersted, read this beautiful blog post with more pictures and interview by Stefan Klenke.