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Message: <blockquote data-quote="Cosme" data-source="post: 2970135" data-attributes="member: 118064">Rui; I keep searching for solutions to the big mags with two eyes ... i share this with you: Source (and the whole thread) : <a href="http://www.cloudynights.com/ubbarchive/showflat.php?Cat=0&Number=1391967&page=0&view=collapsed&sb=5&o=all&fpart=1&vc=1&PHPSESSID=" target="_blank">http://www.cloudynights.com/ubbarchive/showflat.php?Cat=0&Number=1391967&page=0&view=collapsed&sb=5&o=all&fpart=1&vc=1&PHPSESSID=</a>So: In a C6 you can get for example, a 100 mm binoculars, and over 70x using 82 afov eyepieces without waste any fov, or stay on those 44x with the same FOV, but 44x at the end, however 60 afov is still very good ...In the C5, you can get 44x with more FOV (1.4) but losing apperture (80 mm binoculars) so if you want to reach those 70 is at cost of less exit pupil.Even if you pick the C6, it weights 3.7 kgs, plus half a kilo of the binoviewers, but is still very good, is the same you find in a 100mm binoscope. Happens the same with the C5 compared with 80 mm binoscope, wich are both the equivalents with binoviewers. Only in a Vixen Bt81, wich is not ED, you find similar weight.I made a estimated calculation: The C6 OTA is selled for 600 euros, 500 euros the Denk BV, and two eyepieces, lets says 400 euros both ... the combo is 1500 ... The C5 combo is about 1200. Now compare with two straight scopes of the same apperture and its up to you if it worth or not :t:pd: I hope David can tell us if its all correct in the C5 case, since he has tried BV on it, because one part of the equation can screw all; they are using mirrors, us prism, have no idea if prism can works the focusers measures, the reducers, the BV ...:t:</blockquote>

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