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  • Principle of telephoto camera lens
    Principle of telephoto camera lens The principle of a telephoto camera lens mainly includes optical principles and design features. ‌Principles of OpticsThe main characteristic of a telephoto lens is that its focal length is significantly greater than that of a standard lens, typically between 80 millimeters and 1200 millimeters. The angle of view of a telephoto lens is smaller than the...
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