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Message: <blockquote data-quote="kabsetz" data-source="post: 3524908" data-attributes="member: 10167">I got to check out two 8x42 NV:s and one more 10x42 NV on thursday. Of these, all four tubes of the 8x bins again showed very clean boosted images with low to very low aberration in glitter points and the USAF glass slide looking clean and well defined. There were small differences, with one tube of the second binocular showing a little bit of coma, and discernible prism edge artifacts in all four tubes, although only in one of them to an extent which I judge would barely just show in the unboosted image.The 10x42 sample this time was a little less good, with one tube showing enough of a rough prism edge to render optimally focused points of light visibly cross-shaped. This amount of on-axis astigmatism is for my eyes enough to make fully optimal focusing on the bar targets impossible, although the effect is slight enough that I would guess most users would not notice anything was amiss.These were the first 8x NV:s I have seen. In all respects, their image is very similar to that of the 10x. Again, no RB, excellent centerfield sharpness, unprecedented contrast and no veiling glare whatsoever. This time, there was a thin uniform low-lying cloud coverage with the sun breaking through it enough to show as a disk too bright to comfortably look at, and therefore dangerous to view through binoculars. Again it was necessary to check in advance the exact position of the sun above the treeline in order to avoid bringing it into view by accident, as there were no warning signs in the image.As a reference, I checked a Swaro SLC 8x42 (latest, post-SLC HD-model) with the booster and the same tripod/light/test target sets, and saw essentially similar performance on glitter points and sharpness of the resolution target. This Swaro is one of the few binoculars I have seen displaying this level of freedom from aberrations before. On resolution alone, there was no difference that could be considered anything but sample-specific between them, but the Noctivids have coatings that show distinctly less reflections both on the objective and the eyepiece end, and the SLC does not reach the same levels of contrast.I measured the Eye-relief of both the 8x and 10x NV:s as 19 mm from the eyecup rim. Diameter of eye lens is 26 mm, eyecup diameter is 41 mm, and the eyecups have click-stop extension at 3, 11 and 13 mm.  Weight for the 8x42 with objective covers but no other accessories attached was 888 grams.Kimmo</blockquote>

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