Because the arms are fragile, they actually move up and down an eighth of an inch. So when you hold the binoculars to your eyes, they will automatically refocus. I spend more time refocusing instead of looking at what I was trying to see. Very disappointed that Revain put their main logo on this product as a beautiful element. For someone unable to use focusing with a single eyepiece, resetting the overall focus knob makes it impossible to see anything like a bird before it flies away. Overall they're bright and not bad at $50, but totally not worth it for a hobbyist or for kids if you're trying to get them a decent study and study set. You will never get the perfect picture. I thought it would be a decent scatter kit for me to take the boat, but I can't even get her to focus properly while sitting still in my chair. And I've been using binoculars for 30 years. If only this IPC mount were made out of a stronger material I would give them a higher rating. To be honest, I didn't even bother to wait until the night to see how Night Vision works. I am so frustrated focusing on them that I am immediately requesting a refund and ordering another product. And it was only 20 minutes that I had them. It's night now and I'm trying again. They are no different from my main 7x35. There's nothing special about their night vision claims.
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