Traditional Culture Encyclopedia - Photography and portraiture - Why is the standard lens focal length of 135 camera 50mm?
Why is the standard lens focal length of 135 camera 50mm?
The standard lens is only available in Chinese mainland, because for a long time, the camera lens that people in China can see is only about 50mm fixed focus. The reason for saying "standard" may be that a small number of 42mm and 58mm lenses can be seen at the same time in China, but the number is far less than 50 mm. Under the ideology at that time, the obviously dominant 50 mm lens should be called the standard lens. There is no such name in the Soviet Union with similar ideology. It should be because the optical design of the Soviet Union was much stronger at that time. Photographers use at least 35mm and 50mm lenses, so they can't call either "standard".
For photography, there are at least three kinds of fixed focus that can be used to shoot "not particularly wide or very close": 35mm for humanities photography, 42mm for architecture photography and 50/58/60mm for still life photography. 50mm became the "standard" because Chinese mainland had a special market for a period of time, and it had no special significance.
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