10, 11 and 12 May, 10.00-17.00.
The method developed by Swan which produces prints with a delicacy of gradation and a
contrast range greater than any other alternative process. This was, with platinum, the high end
of artistic photography in the 19th century. It was the process which is used in making
copper plate photogravures.
There will be a £10 charge on the day for materials