Abode recently released an update for Lightroom that fixes a problem with the way it handles RAW files from the Samsung NX1 camera. You can clearly see the chromatic aberration affecting the stars in the left (5.7) image, while the stars in the right (5.7.1) image are the correct colors.

For those who are interested, the bright star in this photo is Alnitak, the left-most star in Orion's Belt, and you can just make out the Horsehead Nebula, the faint purple area stretching below it. Without a star tracker, my camera doesn't quite have the resolution necessary to make out the actual horse head, which should be just below the brightish star below Alnitak.