A dew shield is an accessory used with telescopes and camera lenses to prevent condensation from forming on the optical surfaces. It extends outward from the lens or telescope, providing a barrier that helps keep moisture, dew, and frost away. This accessory ensures clearer views and better image quality by reducing the chance of lens fogging and improving overall performance during observations or photography.

Định nghĩa và ý nghĩa của "dew shield"trong tiếng Anh

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