Color mixing correspond to ideal subtractive color mixing because some light from the subtracted color is still being reflected by one component of the original paint. This results in a darker and desaturated color compared to the color that would be achieved with ideal filters. The three primary colors in subtractive mixing that produce the largest gamut are yellow, magenta and cyan, leading to the CMYK color model widely used in color printing. Historically, painters have used yellow, red and blue in place of these, resulting in reduced gamut. In subtractive mixing of color, the absence of color is white and the
Combination printing often necessary to add artistic techniques to photographs. Discussing the benefits of composition in the art of photography and using combination printing, Robinson wrote, in "Pictorial Effect in Photography", that the method of combination served to "produce an agreeable presentation of forms and tones, to tell the story which is to be elucidated, and to embody the spirit of what it is intended the picture shall represent or suggest." His writings show his knowledge and his passion for creating new content in his photos with using this process. During the Victorian Era, another proponent of the technique of combination printing