ETTR--but how FAR to the right for 'scanning' film?

Hi Nate,

I am trying out your suggestion of shooting just the light table and clipping the exposure. I also saw you mention it here.

Could you please explain what exactly you mean by this? What should the histogram look like? I did some test shots I did with my D750, Sigma 105 Macro, and Raleno 116 light (quite bright at max brightness!).

Here are what the histograms look like:
100
80
60
50
40

According to lightroom, highlight clipping is just starting to occur at 1/50? Would it be safe to assume to proceed with 1/50 and these settings from now on?

I actually just shot (scanned) a whole roll at 1/40 (with the same above settings). Haven’t converted yet but will let you know how they turn out.

thank you in advance!
Ramin