History of Cibachrome
This extraordinary medium was developed in the 1960’s by the Swiss company Ciba-Geigy to produce the highest quality photographic prints possible from colour slides. It is a positive to positive printing process where the special Cibachrome paper is exposed in the darkroom with light passing through the original colour film. The brilliant colors are a result of the archival Azo dyes that are in the printing material before it is exposed and processed.
Here, Wilder uses the metallic dyes to fill in any black or white spots that inevitably make their way onto to the print due to dust particles on the film or on the paper – a process termed spotting. Being himself a talented watercolour painter, Wilder’s spotting technique is flawless.