Oxford, in those days, was still a city of aquatint.
牛津,那时还是一座精雕细刻的城市。
In the current exhibition the painting Ada in Green (2009) and the two aquatint prints Vivien (1994), Vincent Katz's wife, and Blue Coat (Vincent) from 1993 are on view.
Aquatint: it is an etching process on copper or steel by means of nitric acid. in this technique a thin layer of resin dust is sprinkled on the plate and heated to make it adhere.