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This is how guiding should be all the time
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30-12-2013, 05:14 PM
Paul Haese
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Join Date: Jan 2009
Location: Adelaide
Posts: 9,944
Using the ST-I with an OAG on a system at 580mm at f5.6. I think that is somewhere around 1.89" per pixel or close to that. The later figure is the scale of the QSI/ TSA with reducer.
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