Cheng has been doing photography including traditional darkroom printing since 2003. He started shooting using film cameras using the 35mm film format. After dabbling in digital photography, he found himself being  drawn back to film photography a few years ago. This time he is attracted by the large negative size offered by large format camera.

At the same time, he started to explore deeper into the roots of photography and the various 19th century photographic processes. Through the various manuals, books, websites found on Internet, he managed to learn the wetplate collodion photography and Kallitype Printing process on its own.