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Message: <blockquote data-quote="henry link" data-source="post: 3191344" data-attributes="member: 6806">Gijs,Thanks very much for posting the cutaways! The SV cutaway was just as interesting to me as the SF. For the first time we can clearly see the shapes of the SV field flattener lenses and establish for certain that they form an air spaced doublet. While your Swiss Army knife is still sharp maybe you could carve up an old EL so we can see if its objective uses the the same Steinheil doublet design as the SF.I also notice that the SF eyepiece design in this real binocular is not quite identical to the schematic representation of the eyepiece design you provided last fall. Were changes made or could one of these cutaways show the 10x eyepiece and the other the 8x?Henry</blockquote>