20% of digital camera owners use their digital camera for artistic purposes, for moonlighting job, or to master photography skills. This segment of photo customers is called the advanced amateur or prosumer segment and has been generating much of the business at camera stores around the country for many years. Manay advanced amateurs are possible candidates looking to enter the studio photography business at some point, as well. Digital advanced amateur customers were 20% more likely to purchase a camera in 2006, Photo Marketing Association says.