If you're looking for one of the best and most micro-adjustable projector mounts, this is the one for you. You can nudge it when connecting/disconnecting cables and it stays aligned where you set it. Adjustable in all angles. I attached it to a ceiling mount for a corner ceiling and it worked great. It's not cheap, but my cheaper mount I had shook the bass in movies, and this mount is so solid it stopped about 2/3 of the vibration.
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