Photographer: What are the necessities of a photographer?

If you are a junior photographer, you can prepare a medium SLR and wide-angle lens. If you have been playing for a while, you can change to better equipment and lenses. If you are interested in a certain kind, such as taking close-ups of flowers and plants, you can prepare macro shots, and if you want to take pictures of people, you can prepare people shots. In short, it depends on your financial resources and purpose!