Are you shooting RAW? If so, you will need to convert them with NX2 for in camera ADC to be applied. If you use LR to convert it won't be applied.
My thought would be ADC in camera only if I shot jpegs or had lenses that did not have built in profiles in my RAW conversion program. Lightroom covers most lenses so I use it to fix distortion issues during conversion, really just a click of a box.