Edwin H. Land and notes. He is buried in Mount Auburn Cemetery in Cambridge, Massachusetts, USA. Land was: Patents Edwin H. Land Edwin Herbert Land, ForMemRS, FRPS, Hon.MRI (May 7, 1909 – March 1, 1991) was an American scientist and inventor, best known as the co-founder of the Polaroid Corporation. He invented inexpensive filters for polarizing light, a practical system of in-camera instant photography, and the retinex theory of color vision, among other things. His Polaroid instant camera went on sale in late 1948 and made it possible for a picture to be taken and developed in 60 seconds or less. Edwin Land
Folding camera the Polaroid SX-70 Instant film camera, and the Speed Graphic press cameras used folding designs into the 1970s. The typical amateur camera of the early 20th Century made various "postcard" sized negatives around 4" × 5". By the 1930s 6cm × 9cm cameras for either the 120 or 620 film size, were highly popular. The use of folding cameras declined in the late 1930s with advances in lens technology allowing superior enlargement, high quality images on smaller negatives, and shorter distances between the lens and the film. 35mm film made small-sized cameras practical without using bellows. Lens technology allowed 120/620