Shooting in RAW, finding or creating a wider range of midtones, and watching out for lines, shapes, textures and patterns are all tips that can help you create great non-flat monochrome pictures from colored ones. Additionally, reviewing your shots and improving your framing can also help you achieve the desired result. It's also important to note that sometimes it's best to convert to black and white when color in the image is distracting, or when the subject itself is a color that isn't appealing. Using patterns in your shots, shooting with high contrast in the black and white preview mode, and adding contrast to the photo by creating an S-curve are also helpful tips for shooting monochrome images.