On the similarities and differences between digital photography and traditional photography,

1, different devices, CCD\CMOS photosensitive devices are used for digital imaging, and the obtained image signals are stored in erasable memory (SD, CF card, etc. ), so the long-term cost of consumables is low; Traditional photographic imaging uses film, which can be imaged once or exposed many times, and the long-term cost of consumables is high. 2. Different post-processing, digital imaging can directly get photos through the picture output system, and can also be directly exchanged or saved as data after being modified by the computer; Traditional photography must use darkroom development system and manual film technology to get photos, and the finished products are film and photos. 3. The focal length of the lens is different. Using the same lens on a digital camera and a traditional camera will produce different photos. Because the CCD\COMS element of digital camera is smaller than the frame of traditional film, the focal end with wide-angle effect in traditional camera may not have this effect in digital camera. Of course, Quan Huafu's high-end cameras are now trying to solve this problem, but the input cost of users is very high. 4. The operation process is different. Traditional cameras are "gambling" and can't "what you see is what you get". Before shooting, you should know your own film parameters, such as ISO (film sensitivity), which is an international unified index to measure the film sensitivity standard used by traditional cameras. It reflects the speed of film sensitivity, that is, the photochemical reaction speed of silver and light. ), when you know these parameters, you can choose the shutter, aperture and other parameters technically and accurately. In addition, you should be familiar with the relationship between indoor and outdoor light intensity and exposure. Otherwise, when you shoot blindly, you may find it dark or pale. Digital cameras do not have this problem. You can set all the parameters at will. "What you see is what you get" allows you to change the parameters at any time to get the best image. 5. The texture of the image is different. Some people pursue the high tolerance of traditional film and the "fuzziness" brought by the material, while digital photography is the true embodiment of the technology based on photoelectric components to the world. Traditional film looks "warm" and "humanized", while digital photography looks "stiff" and "industrialized". Of course, we would like to thank digital photography for making the occupations that once belonged to a few people more popular, and with the help of computer technology, we have achieved the stunts that people dreamed of in the past, made image transmission more convenient through various communication means such as the Internet, and narrowed the distance between people in the world. That's probably all I remember. I'll give it to you later. Hmm. How interesting