The commercial photographic world could include Advertising photography. These are photographs made to illustrate and usually sell a service or product. Photography is used to preserve memories of favorite times, to capture special moments, to tell stories, to send messages, and as a source of entertainment. Photography as a usable process goes back to the 1820s with the development of chemical photography. Photography is a unique and creative medium of self-expression. There is lots of information here for anyone with a personal or professional interest in photography. If you are skilled with a camera, and are motivated to earn your own money in this way, you can be a successful photographer, even on a part time basis. Some commercial photographers, and some amateurs interested in artistic photography, have been resistant to using digital rather than film cameras because they believe that the image quality available from a digital camera is still inferior to that available from a film camera, and the quality of images taken on medium format film is near-impossible to match at any price with a digital camera. Other commercial photographers, and many amateurs, have enthusiastically embraced digital photography because they believe that its flexibility and lower long-term costs outweigh its initial price disadvantages. At the highest-end, some digital cameras are nothing but a sophisticated light-sensing unit. Photography has many uses for both business and pleasure. The aesthetics of photography is a matter that continues to be discussed regularly, especially in artistic circles. With the acceptable image quality and the other advantages of digital photography, particularly the time constraints of vital importance to newspapers, the majority of professional news photographers have begun capturing their images with digital cameras. You should learn about lenses, exposure, and other basic techniques used in the many different types of photography.