Eliot PorterKnown for his exquisite images of birds and landscape, Eliot Porter (American, 19011990) was a pioneer in the use of color photography. His work also became a powerful visual argument for environmental conservation. Trained as a medical doctor and possessing a scientist's gift for close observation, Porter explored new ways of depicting nature, building blinds in trees so he could study his avian subjects at closer vantage, and producing landscape