Provides a new dimension of image control through use of the Sabattier effect, commonly called "solarization". The effect is produced by re-exposing the print to white light while it is in the developer. With other developers, this procedure gives a dark, muddy picture, but with Solarol, contrast is maintained, sharp edge effects appear, and a beautiful surreal image is obtained. The print can be delicate and ethereal or strong and dramatic. The results are predictable and repeatable, and you control the process just as in conventional printing. Ideal for strong, moderate or gentle solarization. Powder makes 2 quarts of concentrate. Dilute 1:1 or 1:2 for use. Good keeping qualities and shelf life. Complete instructions included.