CNN Finding Jesus Faith Fact Forgery December 26, 2015 05:47:00
The sheet would be soaked with photographic chemicals. today, this means using silver salts. >> both silver nitrate and silver sulfate have been around in europe from at least the 13th century. and it's very easy to make. >> a sheet is soaked in silver sulfate solution. dried. and then mounted in the camera. >> after eight hours' expose injure, you will notice a discoloration on the linen. that discoloration would be a negative image of what was outside the camera. >> the silver sulfate would have been washed out of the cloth to complete the process using a chemical in plentiful supply. >> to ...