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Message: <blockquote data-quote="spyglass" data-source="post: 1662754" data-attributes="member: 18470">I've got a recently acquired 10x42 Noble (Chinese made) that doesn't focus right, either. The action is smooth and the diopter stays put, but it has very fast focus (ala Pentax) and it takes a few rocks back & forth, while fiddling with the diopter to get perfect images on both sides. Then if changed to a closer/farther target and using the center focus, the bino doesn't stay in focus on both sides and requires the reset or several back & forth moves to reacquire the clear image in both tubes. Apparently the mechanism inside has some play, tho' it seems tight (no noise when lightly shaken).Celestron, of course, won't honor the "no fault" warranty due to it being bought online, even tho the defect is obviously internal and mfrs snafu. I guess I shouldn't be surprised.....</blockquote>