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22562RE: GTF81 focal length

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  • salmanazam69
    Mar 3, 2014
      I am considering getting the GTF102 for pure astroimaging. I am stuck between getting this model and the GT102 but I very much like the idea of a built in flattener as an external one can be problematic. I'm curious if anyone has gotten good results imaging wise with the GTF. Is the higher focal ratio a cause for concern or should I be ok? I'm using an Atik 383L monochrome for imaging. 

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