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Message: <blockquote data-quote="elkcub" data-source="post: 3632036" data-attributes="member: 14473">Hi Patudo,Sorry to miss your post.  The only other person I knew who owned a Linet was Fan Tau, who specialized in wide-angle binoculars.  By the time I contacted him some years ago he had already sold his 7x?.  But he was very complimentary about it from a WA perspective.  My specimen is fully (single) coated, and therefore not as bright as a multicoated instrument.  Considering the wide angle, however, it displays remarkably little lateral color fringing, and very little distortion.  The center is very sharp.  The one serious limitation is eye relief, and when I use it without glasses it allows for very little eye rotation without producing a kidney bean effect.  This means that in use, redirection must be done primarily with the head and not the eyes.I don't know what criteria Holger uses to define "overstretched," but I do agree from a human engineering perspective that a 63-70 deg. AFOV is probably optimal for general purpose use for two reasons: (a) reasonable eye relief can be achieved (15-19 mm), and (b) it corresponds more or less with the natural overlap region of the eyes.  Anything beyond that necessarily includes large monocular regions and a different manner of instrument use.  For astronomy it's probably advantageous if one can cope with the eye relief issue.  Ed</blockquote>