There is also a small (0.2%) amount of measurable - and visible - pincushion distortion at the telephoto end of the zoom ( click here for test chart ).是什么意思_There is also a small (0.2%) amount of measurable - and visible - pincushion distortion at the telephoto end of the zoom ( click here for test chart ).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句