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Message: <blockquote data-quote="Kevin Purcell" data-source="post: 1297467" data-attributes="member: 68323">That was from <a href="http://www.astronomics.com/main/definition.asp/catalog_name/Astronomics/category_name/t4xcgtepnu3hf9jukwu/Page/1" target="_blank">http://www.astronomics.com/main/definition.asp/catalog_name/Astronomics/category_name/t4xcgtepnu3hf9jukwu/Page/1</a>The explaination is not quite right. The correct explanation is rather complicated (and requires an understanding of polarization on reflection and geometric phase changes on transport around two curving paths that curve in different directions compared to the direction of polarization. See Wikipedia for a better explanation (if I say so myself).<a href="http://en.wikipedia.org/wiki/Schmidt-Pechan_prism" target="_blank">http://en.wikipedia.org/wiki/Schmidt-Pechan_prism</a>Holger Merlitz gave a good explanation on this Cloudy Nights thread too<a href="http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/1423127/page/0/view/collapsed/sb/5/o/all/fpart/all/vc/1" target="_blank">http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/1423127/page/0/view/collapsed/sb/5/o/all/fpart/all/vc/1</a>I should head down to the REI with my Diamondbacks and compare them to the Monarchs. Like FrankD they've become my "knockabout" or grab-and-go bins (in a Pajaro belt bag with a copy of Kauffman and a notebook). I'm really happy with them. I love the wide FOV. They're sharp "enough" and are OK with stray light (they could be a lot better). Also they have good eye releif and the 5mm exit pupil makes them easy to use with my eyeglasses. For only 4oz more than some 8x32 they seem like a good trade off in easy of use verus size. My pair now seem to be getting as much usage as the Yosemites and more than the Celestron Ultima DX (which need a new strap to make them more comfortable) even though that has a better image. They were a good deal for $139 (or $129).I also notice that they're out of stock at Eagle Optics. A temporary supply glitch or new designs on the way?<a href="http://www.eagleoptics.com/index.asp?pid=4819" target="_blank">http://www.eagleoptics.com/index.asp?pid=4819</a></blockquote>

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