Monochrome, also known as black and white has become a challenge for some photographers. Some DSLRs have the ability to set the camera to monochrome and add a specific filter; green, red, orange. Each in camera filter may yield a stronger or weaker monochrome image, depending upon your subject.
I choose to use the in camera monochrome setting without a filter most of the time. I have created some unique images using a variety of film and digital. Here is the link where you can find monochrome images I have created, as well as those created by many very talented artists and photographers.