It's not for sale, and it's not technically digital.

It's basically custom made and takes really big film. The negatives are 18x9 inches. For comparison a 35mm negative is 24 x 36 millimeters.

The lens used on the camera is ridiculously higher resolution than anything commercially available. They use really fine grained film, and scan the film with high resolution scanners such that the 18x9" negative provides at least 1000 pixels worth of resolution after scanning.

The reason for scanning as opposed to regular photographic printing is because no enlarger lens is sharp enough to maintain the level of detail in the 18x9" negative.