Wildlife photography popularly demonstrates the lives of animals. When learning to be a professional photographer you should try entering photography contests. Portrait and wedding photography is typically photographs that are made and sold directly to the families of the people in the images. At the highest-end, some digital cameras are nothing but a sophisticated light-sensing unit. If photography is authentically art, then photography in the context of art would need redefinition, such as determining what component of a photograph makes it beautiful to the viewer. You should learn about lenses, exposure, and other basic techniques used in the many different types of photography. Color photography was first explored beginning in the mid 1800s. When it comes to taking quality photographs, you need to know what lenses you should use, and when you need to use them. Digital photography was used in astronomy long before its use by the general public and had almost completely displaced photographic plates by the early 1980s. If you have a knack for photography, and enjoy doing it, then you might want to think about using your hobby as a way to make some extra money for yourself.