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Message: <blockquote data-quote="Gijs van Ginkel" data-source="post: 3405295" data-attributes="member: 82596">dwever, post 18,I agree and I disagree with respect to your statements in post 18.First of all tranmission spectra tell us two things: the amount of transmission is informative about the brightness of the optical system and the spectrum as a whole tells us something about the color balance and total color impression of the binocular image. They do not give information about contrast transfer, but that is a consequence among others of decreasing optical errors like color dispersion, spherical aberration, coma, astigatism etc. And considering the small price increase of the Ultravid HD-plus compared with the Ultravid-HD my guess is that Leica did not change the optical system of their binoculars at all exept for including HT glass somewhere in the optical system, which may decrease color dispersion.I will try to ad some spectra we measured from which we conclude, that Leica did improve the 8x42 but not that we could find the 8x32 and the 7x42 is just as good as other 7x42's we measured and some perform even better.Gijs van Ginkel[ATTACH]586364[/ATTACH][ATTACH]586365[/ATTACH]</blockquote>