Adolf Miethe (1862-1927) was a pioneer in the field of photographic technology, making significant contributions to color photography. In this work, he presents three-color photography, which emerged as a photographic process in the early 20th century and was co-founded by Miethe. The existing problem of accurately depicting mixed colors in nature was to be solved by a camera capable of capturing the three color spectra separately. This is a reprint of the original edition from 1908.