This value controls the amount of distortion. Negative values correct lens barrel distortion, while positive values correct lens pincushiondistortion.
此值控制着畸变的量。负数值校正镜头圆桶状面性畸变,而整数值校正镜头针尖状点性畸变。
2
Rectilinear distortion: All three binoculars show a moderate amount of pincushiondistortion as it is commonly employed to compensate for the globe effect and to provide a smooth panning of the image.