Milleker develops his photos the same way Mumler did, using a wet plate collodion process that produces a negative image on transparent glass.

米勒的方法和莫拉一致，利用火棉胶“湿板”摄影法，在透明玻璃上生成负像。

Throughout the trip, Jackson juggled multiple cameras and plate sizes using the " collodion process" that required him to coat the plates with a chemical mixture , then expose them and develop the resulting images with a portable darkroom.

在整个旅行过程中，杰克逊使用“火棉胶工艺”处理了多个相机和盘子尺寸，这要求他用化学混合物涂在盘子上，然后曝光它们，并用便携式暗室冲洗生成的图像。