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Message: <blockquote data-quote="Steve C" data-source="post: 1415018" data-attributes="member: 56622">The Steiner CF binoculars have a right eye diopter adjustment.  It is of the standard ring style.  After you pick your first one up and go ??????????? it is pretty easy to find the diopter ring sitting over there on the wrong side.I think I prefer a right eye diopter.  One of the reasons I like the Steiner Peregrine XP so much is he fact that the diopter focus mechanism seems to focus better for my eyes than the standard left eye diopter.I'm more or less in the same boat as Kevin.  I really do not have a focus direction preference, and have and use both.</blockquote>