Not bad at all Jase. That faint dust is most probably masked by the light pollution at my place. Next time you need a good rectilinear widefield give me a pm and if I can see it from my place I will whip one up. The Canon 300mm F2.8L lens has a field of 7x4.6 degrees with a full frame and has far less than 1% rectilinear distortion over its entire field.
Have you tried the the calibrate function in Registar? With enough overlap it matches brightness and colour balance etc.
I should really have said amazing image.
Bert
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