Rembrandt’s Lighting Ratios Rembrandt Lighting/ Three-Point-Lighting 1/60 | f16 | ISO 100 High Contrast 1/60 | f22 | ISO 100 Medium Contrast 1/60 | f22 | ISO 200 Low Contrast 1/60 | f16 | ISO 100 Low Key 1/60 | f16 | ISO 100 High Key 1/60 | f16 | ISO 100 Pack Lighting 1/60 | f8 | ISO 100