How to get a black-and-white photo? First of all learn to see in black-and white! Not every picture looks good in monochrome. (Though not everyone is good in colour!) A lot of people (some photographers as well) simply use a plagin which helps to get it with a single click. It works if you do not make art. But to my mind if you want get a BW photo, shoot it as if you shoot on black-and-white film. Comparing two different ways will make you agree with me.