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Originally posted by Desolate Cancer
Since there are now multi gigapixel cameras 70gigapixel.cloudapp.net...
On July 12, 2006, six photographers (Jerry Burchfield, Mark Chamberlain, Jacques Garnier, Rob Johnson, Douglas McCulloh, and Clayton Spada), unveiled what is currently the world's largest camera and photograph.
The 3,552-square-foot (330.0 m2) photograph was made to mark the end of 165 years of film/chemistry-based photography and the start of the age of digital photography. It was taken using a decommissioned Marine Corps jet hangar (Building #115 at El Toro) transformed into the world's largest camera to make the world's largest picture. The hangar-turned-camera recorded a panoramic image of what was on the other side of the door using the centuries-old principle of "camera obscura" or pinhole camera. An image of the former El Toro Marine Corps Air Station appeared upside down and flipped left to right on film after being projected through the tiny hole in the hangar's metal door. The "film" is a 32 feet (9.8 m) by 111 feet (34 m) piece of white fabric covered in 20 gallons (75.71 liters) of light-sensitive emulsion as the "negative".
After exposing the fabric for 35 minutes the image was developed by 80 volunteers using a giant custom-made tray of vinyl pool liner. Development employed 600 gallons (2271 liters) of black-and-white developer solution and 1,200 gallons (4542 liters) of fixer pumped into the tray by ten high volume pumps. Print washing used fire hoses connected to two fire hydrants.
Resolution is another vital telescope function. Simply put, telescope resolution limit determines how small a detail can be resolved in the image it forms. In the absence of aberrations, what determines limit to resolution is the effect of diffraction. Being subject to eye (detector) properties, resolution varies with detail's shape, contrast, brightness and wavelength. The conventional indicator of resolving power - commonly called diffraction resolution limit - is the minimum resolvable separation of a pair of close point-object images, somewhat arbitrarily set forth by the wave theory at ~λ/D in radians for incoherent light, λ being the wavelength of light, and D the aperture diameter (expressed in arc seconds, it is 134/D for D in mm, or 4.5/D for D in inches, both for 550nm wavelength).