http://agathe.gr/overview/photography.html
Photography A photograph made using the traditional silver halide process is a visual record largely unaltered by the photographer. It is this quality of capturing a mirrored image of the scene that lends ... From the beginning of excavations, the photographic record can be divided into the use of large format and small format cameras. ... He was primarily responsible for the large format photography, using a view camera that required 18 x 24 cm glass negatives. These large format images, even to this day, are unequalled for the amount of information that can be transmitted in a single image.