Diffraction ratio
Ultraviolet Visible Light Infrared
ƒ-stop 350 400 470 550 590 665 720 780 830 930 1000
ƒ/1.4 0.32 0.36 0.43 0.5 0.54 0.6 0.65 0.71 0.75 0.84 0.91
ƒ/2 0.45 0.52 0.61 0.71 0.77 0.86 0.93 1.01 1.08 1.21 1.3
ƒ/2.8 0.64 0.73 0.85 1 1.07 1.21 1.31 1.42 1.51 1.69 1.82
ƒ/4 0.91 1.04 1.22 1.43 1.53 1.73 1.87 2.02 2.15 2.41 2.6
ƒ/5.6 1.27 1.45 1.71 2 2.14 2.42 2.62 2.83 3.02 3.38 3.63
ƒ/8 1.82 2.08 2.44 2.86 3.06 3.45 3.74 4.05 4.31 4.83 5.19
ƒ/11 2.5 2.86 3.36 3.93 4.21 4.75 5.14 5.57 5.92 6.64 7.14
ƒ/16 3.63 4.15 4.88 5.71 6.13 6.9 7.48 8.1 8.62 9.66 10.38
ƒ/22 5 5.71 6.71 7.85 8.42 9.49 10.28 11.14 11.85 13.28 14.28
ƒ/32 7.27 8.31 9.76 11.42 12.25 13.81 14.95 16.2 17.24 19.31 20.77
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.