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Message: <blockquote data-quote="Rathaus" data-source="post: 3584844" data-attributes="member: 132018">Yes, the 'flat field' nomenclature appears to be something of a spectrum...I've seen this nomenclature etched across eyepieces (Nikon HG) or enshrined into a name (FMTX) both of which have nothing approaching the flat field offered up by the SV.However, the discussion in this thread (as outlined by its title) pertains specifically to the Noctivid, so this is the binocular I am ultimately referencing when talking flat fields. I've owned the SV for about seven years so I know it well...it is a technical marvel. I stand by my observations so far - when it comes to the natural rendition of a field of view, the Noctivid offers up a far far better balance of compromises than the SV. These are just my observations. I believe the Noctivid will easily accomodate those who enjoy darting their eyes about. I think most people do. It's difficult not to. For reference, I enjoy darting my eyes about, but not from one periphery of the Fov to the other periphery ...I would be nauseated, in the same way I don't try to look at my own eyebrows. The SV will accomodate this practice somewhat better than the Noctivid or any other binocular I know of. Rathaus</blockquote>