I'm doing a color correct from an after effects file as DPX. I just want to be sure,
Is there any sort of conversion that happens to the file when it is exported that relates to color, gamma curve, etc., that's in the native 'base' export (without changing the export settings)? What does the 'preserve rgb' entail exactly when it is checked vs unchecked?
See the explanation on this page for Preserve RGB:
That page and the resources that it links to also include details of how to use color management and what color conversions are done at each phase.