Advantages and disadvantages of film cameras

The storage medium of a digital camera is a sensor, but at present, the sensor of a common digital SLR is APS-C frame, that is, one end is blocked at the left and right ends of Quan Huafu, and the aspect ratio is 3:2(23.4* 15.6), which is the same as that of 135 film. High-end digital SLR can achieve Quan Huafu, that is, the same frame as 135 film. Due to the limitation of technical conditions, the imaging of digital camera can not achieve the high texture and high layering of film machine imaging. The imaging latitude of ordinary digital cameras is about 3 gears, the latitude of high-grade digital SLR can reach 5 to 7 gears, while the latitude of ordinary color film is about 5 gears, and black-and-white film can even reach 7 to 9 gears. As far as imaging quality is concerned, digital cameras can't compare with film cameras. Film often needs to go through two steps: developing and scanning. The fineness of the picture has a great relationship with the scanning accuracy. Advanced scanners can scan pixels around 1200W (35mm film), while digital SLR does not have this problem, and the pixel accuracy is often fixed.