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Message: <blockquote data-quote="Chosun Juan" data-source="post: 3480666" data-attributes="member: 92780">Bruce,  A 50mm SF should tick both boxes eh?!   :t:   :-OI can understand your's (and Jerry's) impressions that the 42mm 10x42 SF appears quite bright due to the welcome wide and sharp Fov and the transmission curve peaking in the greenish-yellow (the so called green ham tint that some people see - more HT glass would fix that! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />  but I ain't buyin' those Allbino's transmission figures - nosireee! ......  :brains:Zeiss themselves claim 92% for the SF and 95% for the HT (who could forget the famous  "light transmission up to 95% or more"  marketing fluff! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" />This is more in-line considering the optical constructions and materials of both. I don't know whether Allbino's have changed their testing protocols, equipment, or calibrations, but some of the figures seem a bit odd?Chosun   :gh:</blockquote>

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