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Message: <blockquote data-quote="FrankD" data-source="post: 2363151" data-attributes="member: 18544">Brock,I certainly agree with everything you posted but doubt we will ever see an internal focusing porro with a wide field eyepiece. There just doesn't seem to be a market for them. I wish somebody would though. As long as the rest of the optical design was well thought out it could potentially be the perfect bin. Oh, and ED glass in the objective as well. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" />Sadly, no, I did not keep any of the Cascade porros. I sold them all off as my "situation" at the time warranted it. I have tried one sample since then and did own the Opticron HR WP though. As for the focusing issue, after having owned so many I can certainly say that it was a sample variation issue. There was one unit I had, I think I sold it to Spacepilot, that had a butter smooth focuser that would have hung with the Nikon Venturers in terms of tension.</blockquote>