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Message: <blockquote data-quote="Rui_Caratão" data-source="post: 2958763" data-attributes="member: 80272">Terrestrial view trough an ED refractor is great Cosme, but 120mm is a hudge piece of equipment and no way I would carry it to raptor watching points or birding hides. I could go for a small apperture (80 or 90máx) and fast ED refractor, but maybe the image get to dim to use with binoviewers, and they would still be a chunky piece of equipment to carry around. I love the big binoculars idea, straight binoscope mounts or EMS spotting scopes by the way , they are compact, easy to carry around, fast to assemble on the field and with a costum made waterproof carrying case I would be confident to use them outdoors, Portugal weather is like California so I guess it would be fine. TS advertises this 100 APO (most probably semi-Apo) <a href="http://www.teleskop-express.de/shop/product_info.php/language/en/info/p2233_TS-Giant-Binoculars-100mm-APO---45--angled---for-1-25--eyepieces.html" target="_blank">http://www.teleskop-express.de/shop/product_info.php/language/en/info/p2233_TS-Giant-Binoculars-100mm-APO---45--angled---for-1-25--eyepieces.html</a>  to be spray waterproof and nitrogen filled but online reviews are hard to get.....Thanks Steve, dont know wich magnification you use but thats a very good photo for a 4.5  km distance, do you get a close performance with your celestron 80ED refractor? In good viewing days even spotting scopes can show good results, but refractors are certainly better. In attach a handheld photo with an 85mm spotter...</blockquote>

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