Polytoner

Polytoner^© tones B&W prints any color, using color-coupling chemistry: It tones the black image without affecting the highlights or background. (Effect: A black tree against a white sky, toned with green Polytoner: the sky stays white, the tree becomes green.) Use it with black & white photographic papers and Liquid Light prints. Contains red, yellow and blue couplers that can be blended for secondary colors.