<Li> 1942--Kodacolor, the first color film that yields negatives for making chromogenic color prints on paper . Roll films for snapshot cameras only, 35 mm not available until 1958 . </Li> <Li> 1947--Dennis Gabor invents holography . </Li> <Li> 1947--Harold Edgerton develops the Rapatronic camera for the U.S. government . </Li> <Li> 1948--The Hasselblad camera is introduced . </Li>

How long did it take to take a picture in 1900