Diffraction ratio
Ultraviolet Visible Light Infrared
ƒ-stop 350 400 470 550 590 665 720 780 830 930 1000
ƒ/1.4 0.31 0.35 0.41 0.48 0.52 0.58 0.63 0.68 0.73 0.81 0.88
ƒ/2 0.44 0.5 0.59 0.69 0.74 0.83 0.9 0.98 1.04 1.16 1.25
ƒ/2.8 0.61 0.7 0.82 0.96 1.03 1.16 1.26 1.37 1.45 1.63 1.75
ƒ/4 0.88 1 1.18 1.38 1.48 1.66 1.8 1.95 2.08 2.33 2.5
ƒ/5.6 1.23 1.4 1.65 1.93 2.07 2.33 2.52 2.73 2.91 3.26 3.5
ƒ/8 1.75 2 2.35 2.75 2.95 3.33 3.6 3.9 4.15 4.65 5.01
ƒ/11 2.41 2.75 3.23 3.79 4.06 4.58 4.96 5.37 5.71 6.4 6.88
ƒ/16 3.5 4 4.7 5.51 5.91 6.66 7.21 7.81 8.31 9.31 10.01
ƒ/22 4.82 5.51 6.47 7.57 8.12 9.15 9.91 10.74 11.42 12.8 13.76
ƒ/32 7.01 8.01 9.41 11.01 11.81 13.31 14.41 15.62 16.62 18.62 20.02
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.