this is a 300 % view which demonstrates the artifact seen with the NEF derived file
the jpg seems to have little loss of quality & Nikon appears to have done a bit of a tweak for CA artifact with their jpg converter
this makes me feel more confident about using jpgs (with Fine/Neutral settings)
while opening up in PS as a smaller file, there is considerable depth for tweaking to the 65 MB files that open in PS from the DX3's jpgs