Doctoring negatives used to be a very common way photographs were doctored. Think about it: you can iterate on the process and have a reproducible product at th

Doctoring negatives used to be a very common way photographs were doctored. Think about it: you can iterate on the process and have a reproducible product at the end. I can only imagine the trickery necessary to make this work but the historical record is clear that negatives were definitely altered.