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Message: <blockquote data-quote="birdazzLED" data-source="post: 1762716" data-attributes="member: 83781">the no review review (pro-optic and likely viking)Here's a video of the, seemingly, weak eye-cup. They appear to be aluminum. One thing that concerns me is it seems like many of the ED glass bins have a thin appearing look and this one feels especially fragile. In contrast the ZRS eye cups feel stronger and they appear to be thicker. I've never taken an eyecup apart so perhaps i'm just judging on the thickness of the rubber where the eyes meet, and the amount of play while extending the cups. Besides, until recently all my bins had fold downs.  <a href="http://img24.imageshack.us/img24/4764/file4386.mp4" target="_blank">http://img24.imageshack.us/img24/4764/file4386.mp4</a>I don't like the rubber armoring as it's very thin and feels more like rubber foam. It has a wider FOV but since it was badly out of collimation, I lost all interest looking through them, even with one eye. I will say that the one eye image didn't appear to be any sharper than the ZRS. If anything they were less sharp.Overall, the build quality - well, it needs a lot of work.</blockquote>