As promised, here is my try at creating a CMYK image. As you can see, it's totally off and looks almost one-color. My process to get this image was taking the L4, L5, and L6 filters and placing one at a time in their respective channels. The resulting color was the opposite of red, green, then blue. To me it looked like the CMY from CMYK. I took the opposite images, inversed them, then turned them grayscale. After all that I placed them in their respective channels in CMYK. That left the black channel open though, so I just took an L2 image and placed it in there. Not a very pretty picture. SAIDias, will you explain your processes? Thanks.