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Message: <blockquote data-quote="Rui_Caratão" data-source="post: 2972751" data-attributes="member: 80272">Soory Cosme I am just making sure I have something more quantifiable than opinions without comparison. Have you tried a non HD Swarovsky scope? Are those unsuitable for terrestrial viewing above 40x? <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" />Meanwhille, and this is like making a puzzle...I found another thread where a star test and resolution is mentioned about the new APM 100 Apo <a href="http://www.cloudynights.com/ubbthreads/showthreaded.php/Cat/0/Number/6132247/page/0/view/collapsed/sb/5/o/all/vc/1" target="_blank">http://www.cloudynights.com/ubbthreads/showthreaded.php/Cat/0/Number/6132247/page/0/view/collapsed/sb/5/o/all/vc/1</a>"Comparing Kowa with 20 x against APM 100 with 23 x power...the Kowa offers a kind of non dimensions flat image ( like Swarovski new swarovision binocular) , while the APM offers a kind of 3D view ( like Leica new HD binoculars )...on night sky I like for shure more the 3D view. Sharpness: I performed a startest with the APM and old 4.8 mm Naglers = 114 power .....nice concentric diffraction rings and excellent spherical correction, like in a good astronomical doublet apo. "</blockquote>