历年试题当前位置:首页-历年试题
    线性偏振镜和圆形偏振镜的区别
    2017/5/4 14:17:49
    目前有2种偏振镜可选——线性偏振镜和圆形偏振镜,不过只有圆偏适合数码相机。因为线性偏振光可能会影响相机的测光和自动对焦系统。
    At present, there are 2 kinds of polarizer, linear polarizer and circular polarizer. Because linear polarized light may affect the camera's metering and auto focusing system.
    当阳光经过地球的大气层时,会和氮气或氧气分子发生碰撞而产生散射。蓝色的光会比红光散射得更多,这就是为什么晴朗的天空是蓝色的原因。

    When sunlight passes through the earth's atmosphere, it will collide with nitrogen or oxygen molecules to produce scattering. The blue light scatters more than the red light, which is why the clear sky is blue.

    偏振镜是在2片玻璃中夹有一层偏振片的特殊滤镜。在圆形偏振镜中,旋转外层镜片会改变偏振角度,从而过滤掉一部分光线。
    A polarizer is a special filter with a polarizer attached to 2 pieces of glass. In a circular polarizer, the rotation of the outer lens changes the angle of polarization, thereby filtering out part of the light.
    散射光会倾向于保持一个方向的振动。若摄影师的拍摄方向与光线照射方向保持垂直,光线的偏振性最强,偏振镜的作用最明显。当太阳位于摄影师面前或身后时,偏振镜就不会起作用。
    Scattered light tends to keep a direction of vibration. If the photographer's shooting direction and the vertical direction of light irradiation, the polarization of the strongest light, the most obvious role of the polarizer. When the sun is in front of or behind the photographer, the polarizer will not work.
    本文的精彩内容来自山东艺考摄影培训详细内容请点击我们的官方网站: http://www.dysypx.com/谢谢您的到来!
    The exciting content from Shandong art photography training details please click on our official website: http://www.dysypx.com/ thank you for coming!