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Message: <blockquote data-quote="brocknroller" data-source="post: 1726217" data-attributes="member: 665">Ed,I have Chronic Labyrinthitis so I know about "vection" more than most. When the condition is acting up, I have to be careful not to turn my head quickly or tilt it to the side quickly. The only time I ever felt nauseous looking through a bin was with a 10x30 IS, which was not a good sample. I was standing looking at the moon when it began to "swim" around the field of view. I was only moving my eyes, not my head. The nausea stopped when looked through the bins sitting down. That IS sample was very susceptible to microvibrations unlike my own 10x30 IS sample, which was much more stable. However, I can assure you that the "rolling ball" in the LX is the real deal, not a misconception with bean sprouted legs. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />I can see it even when the bins are still. The night sky looks like Ptolemy's Crystalline spheres.  If you don't see it yourself, look at the edges of a full sized LX/LX L, and you'll notice that straight lines remain straight right to the edges. If you carefully look at the image scale, you'll also notice that the same target looks larger at the center and smaller and somewhat "squished" at the edges. There's no pincushion whatsoever. Why Nikon designed a birding and hunting bin that way is a mystery wrapped in an enigma roll. The SE and EDG prove Nikon can make birding bins with sharp edges and only a small amount of "rolling ball". "A great glass to use with glasses" is alliteration not redundancy; this is, this is, this is, this is redundancy. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />Thanks for that erudition on "vection" and the graphic. No doubt, in bins that do have some pincushion (but not too much), some people might experience vection, particularly if they turn their head quickly. Bins with too much pincushion can also create a "rolling globe phenomenon," but with the image rolling over a negatively curved surface (saddle shape). That can be as distracting as positively curved "rolling ball" from lack of pincushion. I suppose one rough test to distinguish "vection" from true "rolling ball" would be to pan slowly in one direction with the binoculars looking at a tree line near the horizon. Then quickly pan back and forth on the same tree line. If you see "rolling ball" in the first scenario, it's probably the real deal. If you see it only while turning your head quickly back and forth, it's probably "vection". If you don't see it in either scenario, hold on to that bin, it's good 'in. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /></blockquote>

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