A resist is a protective, removable layer applied to a surface in the form of a pattern or image to shield certain areas from chemical solutions or treatments. This technique is commonly used in photographic processes, printmaking, etching, and alternative printing methods to control where chemicals interact with the surface.
By applying a resist, photographers and artists can create precise designs, protect highlights, or selectively modify areas of film, paper, or other materials. It is an essential tool for achieving intricate effects, maintaining image integrity, and experimenting with creative photographic or printmaking techniques.