Handling COma - Post-Processing or Lens Choices

[Karl_Zuzarte (Karl Zuzarte, MNEC)]

A peaceful night in Jamestown, RI at the Beavertail Light House. Blended sky and water exposures
Used a Sigma 20 / f 1.4 lens
20mm / f 1.8 / 10 secs

What technical feedback would you like if any?

despite just 10 secs for the sky, there is a significant amount of coma in both upper corners
Does any one have post processing suggestions ?
Also any prime wide angle lens F/ 1.8 or wider with less coma ?

What artistic feedback would you like if any?

Pertinent technical details or techniques:

water exposed for 60 seconds to get that somewhat silky look
(If this is a composite, etc. please be honest with your techniques to help others learn)

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[David_Kingham]

Hey Karl, I’m just seeing this post now. Unfortunately with any prime you will have to stop down to f2.8 to get rid of most of the coma, so the only benefit of the prime is that it might be sharper than a zoom at 2.8. Personally I would probably just go with the Sigma 14-24 which is incredibly sharp and you have a lot more flexibility. Otherwise nice image!