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 0.51 0.54 0.61 0.66 0.72 0.77 0.86 0.92
ƒ/2 0.46 0.53 0.62 0.73 0.78 0.88 0.95 1.03 1.09 1.23 1.32
ƒ/2.8 0.65 0.74 0.87 1.02 1.09 1.23 1.33 1.44 1.53 1.72 1.85
ƒ/4 0.92 1.06 1.24 1.45 1.56 1.75 1.9 2.06 2.19 2.45 2.64
ƒ/5.6 1.29 1.48 1.74 2.03 2.18 2.46 2.66 2.88 3.07 3.43 3.69
ƒ/8 1.85 2.11 2.48 2.9 3.11 3.51 3.8 4.12 4.38 4.91 5.28
ƒ/11 2.54 2.9 3.41 3.99 4.28 4.82 5.22 5.66 6.02 6.75 7.25
ƒ/16 3.69 4.22 4.96 5.8 6.23 7.02 7.6 8.23 8.76 9.81 10.55
ƒ/22 5.08 5.8 6.82 7.98 8.56 9.65 10.45 11.32 12.04 13.49 14.51
ƒ/32 7.39 8.44 9.92 11.61 12.45 14.03 15.19 16.46 17.52 19.63 21.1
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.