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very strange problem with EOTECH 512

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I bought an EOTECH 512, rev. F about 2 years ago

I have been generally happy with it.

however, recently I noticed a very strange issue

there seems to be a “dead circle” of sorts, through which the holograph struggles to be seen

this video describes it better than any words could…

anyone have any idea wtf is causing this?

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11 COMMENTS

  1. I have this same problem now with my EXPS-3-2. I've had it for about 1.5 – 2 years now. On top of that, the report of it having MOA shifts during temperature changes. Sad to say it, going aimpoint…

  2. My EXPS 3-0 makes the same. It is Sooo sad. I'm from Germany and there is no service center in European countries. They will fix it by warranty but the shipping costs about 100 euro. I have two aimpoint and two docter sights and there are no issues.

  3. It's the holographic lens coating. I have the same problem.

    As it turns out, the lens coating is apparently organic. So when nitrogen leaks out, oxygen pours in and slowly eats away at the organic coating.. it only gets worse.

    $159 out of warranty..

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