Thanks Henry, this is certainly consistent with the changes in the glare I saw clearly (or rather, milkilyHi Lee,
Here are some photos that show how de-centered pupil positions can either eliminate or exacerbate the source of glare in the NLs. These show the 8x42, but the 8x32 I examined had similar glare coming from the same place.
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Swarovski NL 8x42 - First Impressions
The usual difference that one would expect as the magnification increases: I had the 8x42 and the 10x42 and the latter was worse---the larger EP of the 8x42 makes eye placement easier. So apparently the large FOV has little to do with the glare problem, as speculated by some, since the glare...www.birdforum.net
Obviously, a binocular's glare resistance should be primarily evaluated with the eye's pupil correctly centered on the exit pupil as in the left photo. That's the neutral condition, but the conditions shown in the other two photos do have some relevance since the pupil tends to wander off-axis in actual field use and, as you mentioned, some people do seem to habitually misalign their eye's pupils with the exit pupils.
Henry
"Spectacle wearers should note that unlike the eyecups fitted to SF, those on the NL slipped and slid around very easily on spectacle lenses from two different brands, making it all the more likely the NLs would easily move inadvertantly in field conditions and expose the glare".
Lee