When was photography introduced to China? What are its characteristics?

When the Qing Dynasty was introduced to China, it was the royal family that first came into contact with it. Later, it was promoted layer by layer. Early photography was portrait photography, which is also a feature of entering China. People still stood there looking at the author, with a dull expression, combing big braid. Bresson recorded many shots of Shijing Street and checkpoint palace in China.