#2. "RE: DxO , PTLens, or Lightroom " In response to Reply # 0
I just finished testing and reviewing PictureCode Photo Ninja which has a tool specifically for mustache distortion. You can download it and use it free for a two week trial period. It is also an excellent raw converter as well.
#3. "RE: DxO , PTLens, or Lightroom " In response to Reply # 0
Have been using DxO Pro for many years. Their lens corrections are outstanding, provided the appropriate camera/lens module is available. Unfortunately, they do not have modules for Zeiss/Nikon combinations, although I have repeatedly requested modules for Zeiss/D700. Apparently there are a lot more Canon photographers who use Zeiss lenses, since appropriate Zeiss modules are available. My Zeiss lenses 25/2, 35/2 and 100/2 show very little field curvature or lens distortions. I tried the LR4 lens corrections, but did not see much improvement and I don't use them anymore.