SABATTIER
This effect is create by re-exposing film negative or plate to light again part way through the development process. The resulting image is given both positive and negative qualities. The effect was not described correctly by Sabattier until 1862.
However it wasn't until the 1920's, the Surrealist Man Ray was to perfect the technique to create an oneiric dream-like state for his portraits and nudes. The process had been accidently discovered by his assistant Lee Miller, who later became the famous American surrealist photographer, in his darkroom.
For Man Ray, the important characteristic is the Mackie line, which marks the boundary between adjacent highlight and shadow areas. Most early photographers who accidently created this effect would have thrown the print away, but for Man Ray, this was a way of making the photographic image strange and bizarre by creating a new order of reality
SOLARIZATION
For our mini-project, we are going to call our color photos "solarized." Basically, the same process as the sabattier developing process but applied to color images.