No obvious chromatic aberration 表面无明显色差
This lens attachment is fully multi-coated and provides nicely sharp and contrasty photos with virtually no chromatic aberration.
镜头附件，这是完全的多，几乎没有色差涂层，并提供很好的反差鲜明的照片。
Dilation due to an increase of chromatic aberration, and other physical defects, so there is no dilation optometry will be accurate diopter!
由于散瞳增加了色像差等生理缺陷，所以不散瞳验光也会得到精确屈光度！
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