Depth of Field Calculator

   

Actual lens focal length (mm)*	3 3.6 4 4.3 4.5 4.6 4.7 4.75 5 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6 6.1 6.2 6.3 6.4 6.5 6.6 6.8 6.9 7 7.1 7.15 7.2 7.25 7.3 7.4 7.5 7.6 7.7 7.8 8 8.2 8.3 9 9.2 9.7 9.9 10 10.5 10.8 11 12 12.5 12.6 13 13.5 14 15 15.5 15.6 16 16.2 16.8 17 17.1 17.4 18 18.3 18.6 19 19.2 19.5 19.8 20 20.3 21 21.3 21.4 21.9 22 22.2 22.5 22.8 23 23.1 23.4 23.5 24 24.9 25 25.8 26 26.4 27 28 28.6 28.8 30 31 32 33 34 35 35.5 36 37 37.5 38 39 40 41 42 43 45 46 46.8 47 48 48.5 50 50.8 50.9 51.0 51.2 51.6 52 53 54 55 55.2 56 58 59 60 61 63 65 66 69 70 72 75 76 80 85 86 90 95 100 101 102 103 104 105 106 110 111 114 115 117 120 121 123 125 127 130 135 140 145 150 152 155 160 165 168 170 180 190 200 203 205 210 215 240 250 254 255 260 270 280 300 305 320 350 355 360 375 380 400 420 450 480 500 600 610 720 800 1000 1200
Selected aperture	f/1 f/1.2 f/1.4 f/1.6 f/1.7 f/1.8 f/2 f/2.2 f/2.4 f/2.5 f/2.8 f/3.2 f/3.4 f/3.6 f/4 f/4.5 f/4.8 f/5 f/5.6 f/6.4 f/6.7 f/7.1 f/8 f/9 f/9.5 f/10 f/11 f/12.7 f/13.5 f/14.3 f/16 f/18 f/19 f/20 f/22 f/25 f/27 f/28 f/32 f/45 f/64
Subject distance	centimeters feet inches meters
Light and sensor format choice	APS-C Green light (555nm CoC=0.017 mm) APS-C Red light (700nm CoC=0.014 mm) APS-C Blue light (500nm CoC=0.024 mm) APS-C Simple COC definition (CoC=0.02 mm) Full frame Green light (555nm CoC=0.026 mm) Full frame Red light (700nm CoC=0.021 mm) Full frame Blue light (500nm CoC=0.036 mm) Full frame simple COC definition (CoC=0.03 mm)

 

 Near limit of acceptable sharpness

 Far limit of acceptable sharpness

 Total depth of field

 Depth of field in front of subject

 Depth of field behind subject

 Hyperfocal distance

 Circle of confusion selected

 Diffraction green

 Diffraction Red

 Diffraction Blue

 

How to use the light choices:
Green: It is the value to use with most images.
For precision work (e.g. where you measure the distance to the subject) use Red or Blue.
Red: To guarantee that a subject INSIDE the DOF will be IN FOCUS throughout the entire visible spectrum.
Blue: To guarantee that a subject OUTSIDE the DOF will be OUT OF FOCUS throughout the entire visible spectrum.
When using Red or Blue you will likely need to measure the distance from the subject to the CCD-plane indicator on the camera body

Simple COC definition values are based on the formula CoC=format diagonal/1500 as noted here. We added this option as a reference because this is the value most on line DOF calculators use.

*Use focal lenght as indicated on your lens

 

Diffraction: please note that out diffraction calculation is only for curiosity purpose, and just as DOF calculation it is based on fixed size (8x10in as explained in the recommended reading) and distance from the print. This makes resolution (MP) differences between cameras somewhat irrelevant.

 

 

You can find an very interesting discussion related to this calculator in our forum.

 

If you have any suggestion please let me know.