My father is colorblind. How to understand what he sees?

 
My father is colorblind. How to understand what he sees? - My, Color blindness, Color blind, Glasses for colorblind people, Vision, Optics, Color, Longpost
My father is colorblind. How to understand what he sees? - My, Color blindness, Color blind, Glasses for colorblind people, Vision, Optics, Color, Longpost


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