Diffraction ratio
ƒ-stops
(thirds)		 Ultraviolet Visible Light Infrared
350 400 470 550 590 665 720 780 830 930 1000
ƒ/1.4
ƒ/2
ƒ/2.8
ƒ/4
ƒ/5.6
ƒ/8
ƒ/11
ƒ/16
ƒ/22
ƒ/32
Diffraction ratio legend
No visible diffraction (less than 3)
Visible diffraction may slightly impact image sharpness (3 to 4.5)
Visible diffraction will impact image sharpness (4.5 or greater)

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 Full spectrum when using a full spectrum converted camera with no additional filter. If you use a full spectrum camera with an additional filter, then select the filter used.
    • Select Hot mirror or UV/IR cut for an unconverted camera, as these contain a hot mirror filter, or when using a full spectrum camera with an added UV/IR cut filter.
  • Switch between (whole) ƒ-stops and (third) ƒ-stops.
  • Select the row of the ƒ-stop you wish to shoot at.