https://emulsive.org/articles/5-frames/5-frames-of-visible-and-present-grain-on-ilford-hp5-plus-fx-37-35mm-format-ei-400-nikon-f2-de-1-nikon-nikkor-35mm-f-2-8-ai-by-emilio-romero
5 Frames... Of visible and present grain on ILFORD HP5 PLUS + FX-37 (35mm format / EI 400 Nikon F2 + DE-1 + Nikon Nikkor 35mm f/2.8 AI) - by Emilio Romero