What does a three-proof camera mean?

What is "three defenses DC"? Simply put, it is waterproof, shockproof and antifreeze. In the rainy and snowy weather in winter, even if the camera gets wet accidentally, as long as it has waterproof function, you can sit back and relax. Also, the weather is very cold in winter, and my hands and feet are sometimes numb. If the camera is shockproof, you don't have to worry about breaking it even if it slips from your hand and falls to the ground. As for the anti-freezing function, it is also necessary in cold winter, at least you don't have to worry about the accident that the camera freezes after the lens is extended.

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