When you take an image you are either intentionally reducing very much the total view of that world around you, you frame the image, use a particular focal length, a particular aperture to work with sharper and not so sharp areas, you are unintionally reducing very many more details of the scene as you look to it - you just take a 2D image of a 3D scene, and the same applies the the colors, you record some of the colors, within the visual spectrum, you are not recording the UV part or the infrared part of the scene. You are taking an image, you are not taking a movie scene, so there is not so much mystic with it, you are reducing intentionally , or unintentionally, the image of the scene as you are taking it, or later in postprocessing , to what you think are the essentials of that image, and that could be the colors, or not, that can be outlines , shapes and dimensions , that can be a particular lighting situation - contrast regardless of the color etc. So removing colors is just one of several of such reductions you did already - 2D instead of 3D, one image instead of a movie clip so movements are gone, and with taking away the colors, converting them into gray shades you enhance that image contents which you consider most important. You could go a step further and reduce the gray shades to black and white - that may work with some high contrast scenes, and not at all with most other images. It is overall a creative process you are doing - you put your view into the image, and reduce or eliminate the less important or distracting properties.
Not really - I was just pushing the Tri X as much as possible to see how big the grains could get....
