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Message: <blockquote data-quote="jjg213" data-source="post: 1748027" data-attributes="member: 34719">Hi Ingle,  I have searched through my large collection of Japanese and American/Canadian Nikon catalogues to try to determine what the "AG" on my 8x42's focussing knob means (all glass, haha!).  There is no indication that they are anything other than HG's, based on weight, and other specs.  There does not appear to have been an "AG" model.  Perhaps someone can confirm this?Other than the weight, they are one of my favourites and get a lot of use.   Thanks, John</blockquote>