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Sigma 65mm F2 DG DN Contemporary — depth of field calculator

The Sigma 65mm F2 DG DN Contemporary is a prime lens for the Third-Party (Various Mounts) system with a focal length of 65mm, a maximum aperture of f/2 and a minimum aperture of f/22. Below is a ready-to-use depth of field (DoF) calculator and tables for typical shooting distances, computed with the same formulas as the PhotoSim app.

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Key numbers

Depth of field table

Distances are measured from the sensor plane. Each cell shows the near and far limit of acceptable sharpness in metres (∞ = to infinity). Circle of confusion = sensor diagonal / 1500.

ApertureHyperfocal1 m2 m3 m5 m10 m
f/273.3 m0.99–1.011.95–2.052.88–3.134.68–5.368.81–11.6
f/2.852.4 m0.98–1.021.93–2.082.84–3.184.57–5.528.41–12.3
f/436.7 m0.98–1.031.90–2.112.78–3.264.41–5.787.87–13.7
f/5.626.2 m0.97–1.041.86–2.162.70–3.384.21–6.167.25–16.1
f/818.4 m0.95–1.051.81–2.242.59–3.573.94–6.846.49–21.8
f/1113.4 m0.93–1.081.75–2.342.46–3.843.65–7.925.74–38.8
f/169.22 m0.91–1.111.65–2.532.28–4.403.26–10.84.81–∞
f/226.72 m0.88–1.161.55–2.812.09–5.322.88–18.84.04–∞

FAQ

What is the depth of field of the Sigma 65mm F2 DG DN Contemporary at f/2 and 3 m?

At 65mm, f/2 and focus at 3 m, acceptable sharpness runs from 2.88 to 3.13 m — about 24 cm in total.

What is the hyperfocal distance of the Sigma 65mm F2 DG DN Contemporary?

At 65mm and f/8 on a Full Frame sensor the hyperfocal distance is about 18.4 m. Focus there and everything from 9.19 m to infinity is sharp.

How do I get more background blur with the Sigma 65mm F2 DG DN Contemporary?

Open the aperture to f/2, move closer to your subject and increase the distance between subject and background. You can check the result in the calculator above.

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