Gallery locations: Denver and Breckenridge, Colo.

Favorite gear: The Linhof Master Technika 4 x 5 view camera and Fujichrome Velvia 100 film. "I used other field cameras while working my way up financially, and the Linhof Master Technika is the most durable for wilderness work, and the most flexible with movements," Fielder says. "I've destroyed several cameras, including Linhofs. The Master Technika is made of metal alloys, and it is the least destroyable field camera I've used..."

John Fielder's background in retail has helped him build a successful niche in high-quality local-interest calendars and books that show off his beloved Rocky Mountains.

It's one thing to take a photograph," says nature expert John Fielder, "but it is another thing, entirely, to sell it."

Colorado specialist Fielder excels at both of these difficult challenges. He's a seasoned and hardworking large-format nature and landscape photographer who runs a multifaceted business selling his work....