Progress with RT 5.9 Film Negative

Hello, I have also achieved good results following your method, but there are a few parameter settings that I don’t quite understand and would like to ask you about:

  1. In the white balance module: I read in another article about the film negative module that I should use the selection of the light source (where the film doesn’t cover) as the neutral point. Is that correct?
  2. Regarding the strategy for selecting neutral points in the film negative module: one should choose a point with the highest density (such as overexposed areas or spots in the image). What about the other point? I see in the images, it’s selected from black objects in the shadows (now totally underexposed black , right?).