Diffraction ratio
Ultraviolet Visible Light Infrared
ƒ-stop 350 400 470 550 590 665 720 780 830 930 1000
ƒ/1.4 0.31 0.36 0.42 0.49 0.52 0.59 0.64 0.69 0.74 0.83 0.89
ƒ/2 0.44 0.51 0.6 0.7 0.75 0.85 0.91 0.99 1.05 1.18 1.27
ƒ/2.8 0.62 0.71 0.84 0.98 1.05 1.18 1.28 1.39 1.48 1.65 1.78
ƒ/4 0.89 1.02 1.19 1.4 1.5 1.69 1.83 1.98 2.11 2.36 2.54
ƒ/5.6 1.25 1.42 1.67 1.96 2.1 2.37 2.56 2.78 2.95 3.31 3.56
ƒ/8 1.78 2.03 2.39 2.8 3 3.38 3.66 3.97 4.22 4.73 5.08
ƒ/11 2.45 2.8 3.29 3.84 4.12 4.65 5.03 5.45 5.8 6.5 6.99
ƒ/16 3.56 4.07 4.78 5.59 6 6.76 7.32 7.93 8.44 9.46 10.17
ƒ/22 4.89 5.59 6.57 7.69 8.25 9.3 10.07 10.9 11.6 13 13.98
ƒ/32 7.12 8.13 9.56 11.18 12 13.52 14.64 15.86 16.88 18.91 20.33
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.