A decommissioned military air hangar in Irvine, California is currently being converted into the world's largest pinhole camera. The photographers with the Legacy Project hope to have a completed photo of the adjacent El Toro Marine Corps Air Station by July 8. From the Associated Press:
"This project is about being deep inside photography, in the sense that you can walk inside the camera. It's the origins of photography and we've been living in it for weeks at a time," said Doug McCulloh, a photography teacher at the Los Angeles County Museum of Art...Link, Link to Photo District News' more detailed earlier article
The photographers are using a nearly 31-by-111-foot piece of white fabric covered in 20 gallons of light-sensitive emulsion as the "negative."
After exposing the fabric for up to 10 days, they will develop it in a huge tub made of pool siding, using 200 gallons of black-and-white developer solution and 600 gallons of fixer.