Cyanotype is one of the earliest photographic processes. Requiring long exposure times, images are traditionally created by laying objects directly onto the light sensitive printing paper. The process produces images in a characteristic blue colour. 'YH723' began as a series of experiments to make a cyanotype emulsion that would adhere to clear film and could be used to make a print from a negative of the Acres 1896 film. Different formulations, proportions of chemistry and methods of application produced a range of images of differing richness and texture. These 'imperfections', these distortions and abstractions of the printed images became a source of fascination. Representational images continually emerge and dissolve within the texture and qualities of the DIY emulsions, perhaps reflecting the fragile grasp of memory and the impermanence of the filmed record itself.

Link: More about Acres                                                     
Link: Making YH723

Background info: YH723 film/process/history