在十九世纪20年代，能够消除色差的透镜被发明出来，他们和显微镜的结合应用给研究者提供了有史以来最清晰的组织标本图像。
In the 1820s, achromatic lenses were developed, and their use in compound microscopes provided investigators with the clearest images yet of tissue samples.
最后，为了消除CG效果图的虚假感，我们为所有图片增加一些色差，一些细微的装饰图案，以及光源上的一些光点和耀斑。
As final touches, aimed to eliminate some "fake CG looks", we added to all the images some chromatic aberration, a very subtle vignette, a few glows and some flare effects on the light source.
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