Scale | Scramble up Rising ground Clamber challenge |
B
ack in the days when film was the only affordable light sensitive material, I enjoyed working with the Sabatier effect. This is a darkroom process which exposes a partially developed photographic emulsion to light, and then development continues to completion to create a limited reversal of tones, rendering some of the negative image as positive. By varying the timing relationship of the initial exposure and the second reversing exposure, a range of visual effects can be controlled; although the process always exhibits a measure of unpredictability. I also began working on a variant of this, in which I would make a negative and a positive from the same original, and then sandwich these together for a contact exposure onto print material. In the digital domain, the same end result can more easily be achieved with much more control.
“The photographer who combines scientific method with artistic skill is in the best possible position to do the good work.” - Vero Charles Driffield
