What knowledge does portrait photography need? Is this the age limit? How far can this go? I am 22 years old now. ...

There is no age limit for learning photography, and it is generally accepted to be around 20 years old. I have a female colleague around me who loves photography after retiring at the age of 55. She is obsessed with taking pictures after 5 o'clock every morning. It has been two years, and now she has basically started. You're still young, and if you're enthusiastic, it only takes six months-

To learn photography, we must first supplement some basic knowledge of photography (it is necessary to have our own SLR camera, which can be quickly learned by combining practice and interest): understand the concepts of aperture shutter, depth of field and focus exposure lens (a classic book, a photography textbook in new york, USA), and gradually understand what a good photo is. This is the basic accumulation stage. No matter what kind of photography is necessary, then slowly learn some shooting and composition skills on this basis. If you like portrait photography, you can focus on the direction of portraits. Familiar with these, you can learn more good works and gradually form your favorite style, plus some colors and later knowledge. At this stage, you will know what to do.

Finally, add that portrait photography usually uses more lenses with a focal length of more than 50. If you don't buy a camera, you can consult the service staff and tell him to take portraits in the future to see what lens is suitable.