最近,随着尼康D800和D800E以及富士X-Pro1几款热门机型的发布,使一个在往日不太被提及的专业名词被广为人知,并成为了2012器材市场的首个关键词,这个词就是——低通滤镜(也称低通滤波器,Low-pass filter)。那么什么是低通滤镜?它的作用又是什么?简而言之,低通滤镜是用来消除照片上面的摩尔纹以及伪色的,那么我们要想对低通滤镜有所了解,就不可避免地要先了解一下摩尔纹以及伪色。 Recently, with the release of Nikon D800 and D800E and several popular models of the Fuji X-Pro1, making a professional term not mentioned in the past is widely known and became the first keyword in 2012 equipment market, the word Is - low-pass filter (also known as low-pass filter, Low-pass filter). So what is a low-pass filter? And what is its role? In short, the low-pass filter is used to eliminate moiré above the photo and the pseudo-color, then we have to understand the low-pass filter , It is inevitable to first understand the Moire pattern and the false color.