Discussion about this post

User's avatar
Craig L's avatar

Wet plate collodion negatives required an exposure of between 5 and 20 seconds to obtain an image so subjects being photographed had to strike, hold and maintain a pose for that long or cause the image to be blurred. Much of the photographer's skill involved managing the movements, or lack thereof, of the subjects being photographed during the interval when the aperture of the camera was open. Plates and their treatment with photographic chemicals prior to the shot and afterward were not insignificant expenses for the photographer. Some of the compounds for color photography contained soluble silver. Fifty years ago I worked about three months as a chemical mixer for a photofinishing plant. My first week on the job I drained what remained of a seventy-five gallon vat to mix a fresh vat, without recalling that the vat I had drained had to first be filtered to remove the silver, which cost more than I was paid for the three months I worked there.

28 more comments...

No posts

Ready for more?