If I were to shoot portraits using paper negatives instead of film, what paper type would you recommend? I was thinking Ilford Multigrade but keen to hear if others have done this and preferences. Also, what iso should I aim for under studio lighting? (Constant daylight balanced). I'll be shooting on a MPP monorail 5x4. Currently getting a 50th sec at f5.6 with a 5ft octabox close in @400 iso.