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Message: <blockquote data-quote="Gijs van Ginkel" data-source="post: 3148519" data-attributes="member: 82596">In addition to my post 32 I looked at the transmission spectra of the Zeiss Victory 8x42HT with a light transmission of 95% around 550-555 nm and 92% for the 8x42 LSC-HD (the "old"model). At 450 nm the HT transmits 84,5%, the SLC-HD 82% and between 600 and 650 nm both binoculars have exactly the same light transmission. The result for the eye is that the HT has a slightly higher image brightness because of the slightly higher light transmission in the wavelenght range 450-600 nm and because the transmission maximum of the HT is in a spectral region which our eye-brain combination judges as bright.I did not measure the newest SLC yet, but that may yield another picture, since Swarovski continuously improves their binoculars.It will now be interesting to compare the SF and the newest SV.Gijs</blockquote>