Thread: help please....
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Old 13-02-2007, 11:33 AM
thersites
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Join Date: Feb 2007
Posts: 36
help please....

Hi all

need to know the lowest useful magnification for a 12" dob for wide field views of globulars and diffuse nebula; hence want to know what fl ep is best for wide field views, and is a 2" better than a 1.25"? fl of telescope is 1500mm. is 50 or 42 mm ep too much?
ta
adam
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