Diffraction ratio
Ultraviolet Visible Light Infrared
ƒ-stop 350 400 470 550 590 665 720 780 830 930 1000
ƒ/1.4 0.32 0.37 0.43 0.5 0.54 0.61 0.66 0.71 0.76 0.85 0.91
ƒ/2 0.46 0.52 0.61 0.72 0.77 0.87 0.94 1.02 1.08 1.21 1.3
ƒ/2.8 0.64 0.73 0.86 1 1.08 1.21 1.32 1.42 1.52 1.7 1.83
ƒ/4 0.91 1.04 1.23 1.44 1.54 1.74 1.88 2.04 2.17 2.43 2.61
ƒ/5.6 1.28 1.46 1.72 2.01 2.16 2.43 2.63 2.85 3.03 3.4 3.65
ƒ/8 1.83 2.09 2.45 2.87 3.08 3.47 3.76 4.07 4.33 4.85 5.22
ƒ/11 2.51 2.87 3.37 3.95 4.23 4.77 5.17 5.6 5.96 6.67 7.18
ƒ/16 3.65 4.18 4.91 5.74 6.16 6.94 7.52 8.14 8.66 9.71 10.44
ƒ/22 5.02 5.74 6.75 7.89 8.47 9.54 10.33 11.2 11.91 13.35 14.35
ƒ/32 7.31 8.35 9.81 11.48 12.32 13.88 15.03 16.28 17.33 19.42 20.88
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.