Thalestris24 Posted March 29, 2017 Share Posted March 29, 2017 Hi all Was just doing some online calculations with a view to using a SA200 with my 80mm F6 APO Putting it just in front of the t-ring on the FS1100d, gives a sensor distance of ~62.5mm. The calculator returns 4.2A/pixel and a spectrum width of 20268A (2026nm). The only complaint from the calculator was that it might be a bit dim? Can I compensate with longer exposures? Other than that, do the numbers sound ok? Thanks Louise Link to comment Share on other sites More sharing options...
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