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ngc-5139
Hi Phil,
Thats a mighty Camera you have there, however for point sources like this (stars) you only need short exposures, I might suggest anything from 1 Min. to 4 Min. depending on the Scope, if its slow like F-10 then maybe the 4 Min. Exp., faster scopes less of course, Im attaching a single 3 Min. Exp. at ISO-400 of this object taken using a Canon EOS300D + ED80 F-7.5 Scope, DF removed & guided as my example.
regards......Jim
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