Depth of field · Full frame

85 mm f/2.8 depth of field on full frame

Exactly how much is sharp with a 85 mm lens at f/2.8 on a full-frame camera, from 30.0 cm to 100 m.

86.1 m
Hyperfocal distance
43.0 m
Sharp from (focused at hyperfocal)
85 mm f/2.8
Full-frame equivalent
29°
Diagonal angle of view

Depth of field by subject distance#

85 mm at f/2.8 on full frame (36×24 mm), circle of confusion 30 µm. “Background blur” is the size of an out-of-focus light at infinity as a percentage of frame width.

Focus distanceNear limitFar limitTotal DoFFront / behindBackground blur
30.0 cm (0.98 ft)29.9 cm30.1 cm0.1 cm50% / 50%33.34%
50.0 cm (1.64 ft)49.8 cm50.2 cm0.5 cm50% / 50%17.27%
75.0 cm (2.46 ft)74.4 cm75.6 cm1.2 cm50% / 50%10.78%
1.00 m (3.28 ft)98.9 cm1.01 m2.1 cm49% / 51%7.83%
1.50 m (4.92 ft)1.48 m1.53 m4.9 cm49% / 51%5.07%
2.00 m (6.56 ft)1.96 m2.05 m8.9 cm49% / 51%3.74%
3.00 m (9.84 ft)2.90 m3.11 m20.4 cm48% / 52%2.46%
4.00 m (13.1 ft)3.83 m4.19 m36.5 cm48% / 52%1.83%
5.00 m (16.4 ft)4.73 m5.30 m57.3 cm47% / 53%1.46%
7.00 m (23.0 ft)6.48 m7.61 m1.13 m46% / 54%1.04%
10.0 m (32.8 ft)8.97 m11.3 m2.34 m44% / 56%0.72%
15.0 m (49.2 ft)12.8 m18.1 m5.36 m41% / 59%0.48%
20.0 m (65.6 ft)16.2 m26.0 m9.79 m38% / 62%0.36%
30.0 m (98.4 ft)22.3 m46.0 m23.7 m33% / 67%0.24%
50.0 m (164 ft)31.6 m119 m87.5 m21% / 79%0.14%
100 m (328 ft)46.3 m∞∞—0.07%

Try other settings#

Near limit—
Far limit—
Depth of field—
Hyperfocal distance—
In front / behind—

85 mm at other apertures (subject at 3 m)#

ApertureTotal DoFHyperfocal
f/1.28.7 cm201 m
f/1.410.2 cm172 m
f/1.813.1 cm134 m
f/214.5 cm121 m
f/2.820.4 cm86.1 m
f/429.1 cm60.3 m
f/5.640.9 cm43.1 m
f/858.6 cm30.2 m
f/1181.3 cm22.0 m
f/161.21 m15.1 m

Other focal lengths at f/2.8#

Focal lengthSubject atTotal DoF
14 mm3.00 m∞
16 mm3.00 m142 m
20 mm3.00 m6.17 m
24 mm3.00 m3.21 m
28 mm3.00 m2.13 m
35 mm3.00 m1.27 m
40 mm3.00 m95.5 cm
50 mm3.00 m60.1 cm
85 mm3.00 m20.4 cm
105 mm3.00 m13.2 cm
135 mm3.00 m7.9 cm
200 mm10.0 m41.2 cm
300 mm10.0 m18.1 cm
400 mm10.0 m10.1 cm

Same lens settings on other formats#

When to use it#

At f/2.8, a 85 mm lens on full frame is a natural choice for portraits and subject isolation. Focused at 3 m you get 20.4 cm of sharp zone; for maximum front-to-back sharpness focus at 86.1 m and everything from 43.0 m to infinity will be acceptably sharp.

See also the f/2.8 aperture guide.

Frequently asked questions#

What is the depth of field of a 85mm lens at f/2.8?

On full frame, focused at 3 m, it is 20.4 cm; at 1 m it is 2.1 cm.

What is the hyperfocal distance for 85mm f/2.8?

86.1 m (282 ft) on full frame. Everything from 43.0 m to infinity is acceptably sharp.

Last updated October 03, 2026 · How we calculate · Sources