What form of photography did ernst haas use?

Ernst Haas was known for his pioneering work in color Photography and is often regarded as a master of photojournalism and fine art photography. He utilized a technique called "color transparency," which emphasized vivid colors and dynamic compositions. His innovative use of color and movement captured the essence of his subjects, often conveying emotion and a sense of spontaneity. Haas's work played a significant role in the acceptance of color photography as a legitimate art form.