
Stockholm, the oldest photo still preserved is from 1826. During the second part of the 19th century there was a lot of experimenting within photography aiming to find materials for reproducing positive pictures. They tried salt paper, albumin paper and carbon prints. And lots more, before silver chloride and silver bromide were developed as more persistent materials.
Newspapers by that time, and earlier, were illustrated with drawings. War and dispair, accidents and catastrophes were drawn by hand. Good drawings were rich of details and engaging to look at. Many artists were active as newspaper illustrators, for example Goya, the great Spanish painter.
When walking around at the National Museum I think of this. Just now here is a great exhibition with works by the so called Prerafael Brotherhood, PRB, a British school of this time. A photographic way of detailed painting, often inspired of classic themes as jealousy, illness and dramatic death. The paintings are rich of symbols like a broken window, flowers thrown away in the gutter, beautiful red apples...
This connection in time will not alone explain the manner of painting. But part of it, I am sure. Free thoughts and values individually expressed are woven like threads together with other threads composing the web of the time being. Things are connected, reciprocally explained.