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The difference between the auto mount and the AI mount is the difference between the AI mount and the auto mount 1, and the biggest difference between the AUTO mount and the AI mount is the groove at the end of the lens body on the side of the lens mount. The auto mount is flat, while the AI mount is grooved, which tells the machine the maximum aperture and the current aperture. In a modern Nikon digital camera, no...
What does Douyin operate every day (What does Douyin operation do every day)