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Message: <blockquote data-quote="Theo98" data-source="post: 3312995" data-attributes="member: 132099">As Lee said, very nice summation...Thanks Kimmo!Brock,Seems with my pupillary responses, I need the 5mm EP in my optics as anything less (3.125 to 4.2) in very low light conditions (as you described) induce kidney beaming or blackouts in FOV. Your GGF may have something there, because for me, Aperture (and Objective) Rules! :t: Robert,Ergonomics are certainly a positive factor with a well though out design success...a big plus for the SF's! When I can locate a dealer closer than 500 miles that stock the 10x42's for me to try out, I will be glassing with em'! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" />Thanks...Ted</blockquote>