^{The Stouffer TX Exposure Guide is used to pinpoint the proper exposure for B/W and color prints. From one test exposure, the user can select the best of the nine exposure patches that cover a range of 1 1/2 to 3 F-stops in 1/6 and 1/3 F-stop increments. A conversion chart indicates the proper exposure in seconds.}

                 ^{A benchmark for}

                               ^{Stouffer Craftsmanship}

^{Transmission Projection (TP) Step Wedges are most commonly used in the enlarger to establish exposure and processing adjustments and to determine the speed and contrast of photographic papers.} 

^{Visualization is a creative and subjective concept used when approaching the art of photography. Visualization works by projecting the final photographic image in the mind.}

^{To help the photographer use this creative concept, Stouffer has designed the RZ9 Zone System Chart. The RZ9 displays the useable Zones of I to IX for comparison of the actual tonal values of photographic papers and images to be photographed.}