Canon EF 135mm F2L USM Depth of Field Calculator & DoF Table

Key numbers

Mount / system: Canon EF (Full Frame DSLR)
Sensor: Full Frame, 36 × 24mm
Focal length: 135mm
Aperture: f/2 to f/32
DoF at 3 m, 135mm, f/2: 2.97–3.03 m (≈ 5 cm deep)
Hyperfocal distance (135mm, f/8): 79.1 m

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.

Aperture	Hyperfocal	1 m	2 m	3 m	5 m	10 m
f/2	316 m	1.00–1.00	1.99–2.01	2.97–3.03	4.92–5.08	9.70–10.3
f/2.8	226 m	1.00–1.00	1.98–2.02	2.96–3.04	4.89–5.11	9.58–10.5
f/4	158 m	0.99–1.01	1.98–2.02	2.95–3.06	4.85–5.16	9.41–10.7
f/5.6	113 m	0.99–1.01	1.97–2.03	2.93–3.08	4.79–5.23	9.20–11.0
f/8	79.1 m	0.99–1.01	1.95–2.05	2.90–3.11	4.71–5.33	8.89–11.4
f/11	57.6 m	0.99–1.02	1.94–2.07	2.86–3.16	4.61–5.46	8.54–12.1
f/16	39.6 m	0.98–1.02	1.91–2.10	2.80–3.23	4.45–5.70	8.01–13.3
f/22	28.9 m	0.97–1.03	1.88–2.14	2.73–3.33	4.28–6.01	7.45–15.2
f/32	19.9 m	0.96–1.05	1.83–2.21	2.62–3.51	4.02–6.62	6.68–19.9

FAQ

What is the depth of field of the Canon EF 135mm F2L USM at f/2 and 3 m?

At 135mm, f/2 and focus at 3 m, acceptable sharpness runs from 2.97 to 3.03 m — about 5 cm in total.

What is the hyperfocal distance of the Canon EF 135mm F2L USM?

At 135mm and f/8 on a Full Frame sensor the hyperfocal distance is about 79.1 m. Focus there and everything from 39.6 m to infinity is sharp.

How do I get more background blur with the Canon EF 135mm F2L USM?

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.

Canon EF 135mm F2L USM — depth of field calculator

Key numbers

Depth of field table

FAQ

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