Adventure could be Mikkel Aaland's middle name. In 1982, the O'Reilly author and organizer of the Lightroom Iceland Adventure talked to David Letterman about his adventures taking portraits of folks visiting county fairs. The portraits were snapped in a portable studio that was hauled from fair to fair in California and Arizona between 1976 and 1980. The studio included a darkroom and a shooting stage. Three people ran it: a shooter (Mikkel), a front person to handle customers, and a darkroom person to develop and print the 4x5 inch negative. The entire process, when going smoothly, took about fifteen minutes. On YouTube here.