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Yes nice and bright with lots of detail. Coma is a problem and blown highlights.
Its a rare lens that works wide open in astro in my experience so far. Only a couple have done it, most need a couple of stops stopped down at least. I think we get away with a lot at 14mm but 50mm is less forgiving. Also 14mm is receiving more of the available light energy in the sky, 50mm a smaller slice.
Stopped down (that looks like it needs F4 to F5.6), longer exposure, lower ISO seems the best approach. Perhaps 5 minute exposures at ISO1600 F5.6 would be the go. Working out the ideal setting for lenses is a bit time consuming.
Greg.
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