The photographic canvas of "The Great Picture"
Image: The Legacy Project
But why stop at a truck, when you could convert an entire airplane hangar into a pinhole camera? While the Cameratruck above is touted as the world's largest mobile camera, this hangar is certified by the Guinness Book of Records as the largest camera in existance, albeit immobile.
It's basically an old hangar building at the disused El Toro Marine Corps Air Station in Southern California, which has been made light tight to ensure no light gets in except through the little pinhole in one of the hangar's sides. To create the image alluringly described as "The Great Picture", a huge sheet of made-to-order canvas was suspended inside the hangar and coated in 80 litres of Liquid Light, making it photosensitive.
The exposure time of the world's largest camera was set to aproximately 35 minutes, after which the canvas was chemically developed (in a pool of 2300 litres of developer – photography at this scale does not come cheap!) into the world's largest photo, 313 square meters (3375 square feet) in size.
Compare that to a standard 135 film frame, which you might remember from earlier on in the article is 36x24 milimeters, equalling 8.64 square centimeters, or 0.00864 square meters.
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