Converting MLV to Prores I have some Magic Lantern Raw footage that I want to convert to Prores 444 for use in this workflowenter link description here.

I understand the process, other than the use of LUTs.

In the process, an application called MLRawViewer is used to convert .mlv files to ProRes444 files. In this conversions process, a LUT is selected. My confusion lies in the selection of the LUT. 

I want the ProRes file to be as flexible as possible for grading later in the process, and I have no desire to use a LUT to give the footage a particular look. 

So which LUT should I choose? What should inform this decision?
I'd pick something that looks flat and unsaturated.  Those are usually the ones designed to retain detail.  If you see clog or slog2, those are good.  Rec 709 will throw out info, so don't use that.


  What should inform this decision?


Trial and error.  A lut is really just a starting point for your grade.  Try some different ones out.  If it absolutely butchers the color, then it's probably not a good place to start.  If you see clipping or banding, then you've chosen a lut which was meant for a different situation.  As you try each one, look at the trace on a waveform monitor and vector scope.  If anything goes out of bounds, pick something else.  Do you notice any kind of granularity, banding, or stair-stepping in the traces?  Look for one that's more even.