What is "Carlo" photography?

William Talbot, a famous British classical writer and scientist, announced his negative image-just like craft-to arago, a French parliamentarian, and the Royal Academy with 1839 four years ago. The negative image of 184 1 year-just as the process was patented in Britain. Talbot called his photography "Carlo" photography. Although the image quality of this photography method is not as good as that of "silver plate method", "Carlo" photography can repeatedly print positive images from negative images, use paper-based coating photosensitive materials, and improve the image quality through improved technology. The exposure time of Carlo photography is about 5 minutes, so he can only shoot static objects and landscapes. The Open Door, shot by Talbot with Carlo photography, has clear details, realistic texture, natural and random picture and composition. In order to promote his "Carlo" photography, Talbot took many high-level works with photographic paper and published the first photo collection "Brush of Nature". In fact, Talbot's "Carlo" photography has become the prototype of modern negative photography. The 65438+1930s was an active period for the continuous development of photography, and the Frenchman Bayard invented the paper-based positive film technology. Pioneers of photographic inventions constantly improved their technology in photosensitive materials, which played an important role in the spread and development of photography.