Reference pictures for the strength of background blur B

  • Subject width w1 = 0.515m
  • Subject distance s1 = 1.1m
  • Focal length f = 50mm
B=0.31%, Aperture 32 B=0.34%, Aperture 29
B=0.39%, Aperture 25 B=0.45%, Aperture 22
B=0.49%, Aperture 20 B=0.55%,Aperture 18
B=0.61%, Aperture 16 B=0.70%,Aperture 14
B=0.76%, Aperture 13 B=0.89%,Aperture 11
B=0.98%, Aperture 10 B=1.09%, Aperture 9
B=1.23%, Aperture 8 B=1.38%, Aperture 7.1
B=1.56%, Aperture 6.3 B=1.76%, Aperture 5.6
  • Subject width w1 = 0.42m
  • Subject distance s1 = 2.6m
  • Focal length f = 146mm
B=0.97%, Aperture 36 B=1.09%, Aperture 32
B=1.20%, Aperture 29 B=1.40%, Aperture 25
B=1.59%, Aperture 22 B=1.75%, Aperture 20
B=1.94%, Aperture 18 B=2.18%, Aperture 16
B=2.5%, Aperture 14 B=2.69%, Aperture 13
B=3.18%, Aperture 11 B=3.49%, Aperture 10
B=3.88%, Aperture 9 B=4.37%, Aperture 8
B=4.92%, Aperture 7.1 B=5.54%, Aperture 6.3
B=6.24%, Aperture 5.6