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Old 19-06-2015, 03:24 PM
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Eden (Brett)
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Eden is offline
Join Date: Jan 2014
Location: Melbourne, Australia
Posts: 399
See the attached image -- the Gallium Arsenide coatings shown in the top-left are (according to the video) a very recent advancement in anti-reflective coating technology and are found on the Canon lens featured.

I'm interested to know whether Takahashi objectives have the same coatings, but looking at the structure of said coatings the benefits are fairly obvious.
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