Why is AR green-ish. I know there is an answer for this. I just forget. And with that in mind, how is Zeiss able to Gold ET or Revolution able to do "color free"? There is something about greens position on the color scale and it is at ist's best performance there? Someone break it down for me.......
Thank You.
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That tells me why the old AO (1960's) AR was pink. it was a lovely pink, almost like a light Cruxite.





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