Photographer Shaun Irving explains the art and science behind his cameratruck project: an ultra-large format camera built from a delivery van. The truck acts as a camera obscura, project the image within its dark interior where it can be exposed. A hole in the side of the truck holds a lens. Paper over the hole adjusts the aperture and he manually exposes the image. The resulting images can be as large as four feet tall and eight feet wide. With the limitations of the truck and fumbling around in the dark, the resulting images capture the energy, confines, and process that made them. The fascination with the work lies in their technical imperfections and the story and journey behind them.