Diffraction ratio
Ultraviolet Visible Light Infrared
ƒ-stop 350 400 470 550 590 665 720 780 830 930 1000
ƒ/1.4 0.36 0.41 0.48 0.56 0.61 0.68 0.74 0.8 0.85 0.95 1.03
ƒ/2 0.51 0.59 0.69 0.81 0.86 0.97 1.06 1.14 1.22 1.36 1.47
ƒ/2.8 0.72 0.82 0.96 1.13 1.21 1.36 1.48 1.6 1.7 1.91 2.05
ƒ/4 1.03 1.17 1.38 1.61 1.73 1.95 2.11 2.29 2.43 2.73 2.93
ƒ/5.6 1.44 1.64 1.93 2.26 2.42 2.73 2.95 3.2 3.41 3.82 4.1
ƒ/8 2.05 2.34 2.76 3.22 3.46 3.9 4.22 4.57 4.87 5.45 5.86
ƒ/11 2.82 3.22 3.79 4.43 4.76 5.36 5.8 6.29 6.69 7.5 8.06
ƒ/16 4.1 4.69 5.51 6.45 6.92 7.8 8.44 9.14 9.73 10.9 11.72
ƒ/22 5.64 6.45 7.58 8.87 9.51 10.72 11.61 12.57 13.38 14.99 16.12
ƒ/32 8.21 9.38 11.02 12.9 13.83 15.59 16.88 18.29 19.46 21.81 23.45
Diffraction ratio legend
No visible diffraction
Visible diffraction may slightly impact image sharpness
Visible diffraction will impact image sharpness

How To Use This Table

  • Select a Camera. If your camera is not listed, request to add it here.
  • Select a Filter. If a column is dimmed, that wavelength of light will not be transmitted by the selected filter.
  • Select the row of the ƒ-stop you wish to shoot at.