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Old 14-03-2007, 04:03 PM
ColHut (Colin)
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ColHut is offline
 
Join Date: Jul 2006
Location: Perth WA
Posts: 266
Many thanks. I needed to know I was not barking up the wrong tree. This is why longer tubes have wider eyepieces I suppose. Otherwise the problem gets worse. A 10" f5 reflector witha 1.25" eyepiece would only have a TFOV of 27/1250x57 = 1.23 degrees, even with a 2" focuser only gives 46/1250x57 = 2.1 degrees. If you really want wide views you need short tubes...
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