Oil print process

The oil print and bromoil processes create soft images reminiscent of paint or pastels but with the distinctive indexicality of a photograph.

Wall described how it should theoretically be possible to place a negative in an enlarger to produce a larger silver bromide positive, which would then be bleached, hardened, and inked following the oil print process.

[1] Much as Wall envisioned it, the bromoil process starts with a normally developed print exposed onto a silver-bromide paper that is then chemically bleached, hardened, and fixed.

An issue with the bromoil process is that inadequate rinsing of the chrome salts can lead to discoloration of the prints when exposed to light over long periods of time.

This technique requires three matching negatives of the subject, each made on Ilford Hypersensitive Panchromatic plates and shot through a blue, green, and red filter.

The developed plates are enlarged and printed onto separate pieces of bromide-silver photographic paper, which are then bleached and hardened in the usual manner.