Depth of field · Full frame

85 mm f/1.4 depth of field on full frame

Exactly how much is sharp with a 85 mm lens at f/1.4 on a full-frame camera, from 30.0 cm to 100 m.

172 m
Hyperfocal distance
86.1 m
Sharp from (focused at hyperfocal)
85 mm f/1.4
Full-frame equivalent
29°
Diagonal angle of view

Depth of field by subject distance#

85 mm at f/1.4 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)30.0 cm30.0 cm0.1 cm50% / 50%66.68%
50.0 cm (1.64 ft)49.9 cm50.1 cm0.2 cm50% / 50%34.54%
75.0 cm (2.46 ft)74.7 cm75.3 cm0.6 cm50% / 50%21.56%
1.00 m (3.28 ft)99.5 cm1.01 m1.1 cm50% / 50%15.67%
1.50 m (4.92 ft)1.49 m1.51 m2.5 cm50% / 50%10.13%
2.00 m (6.56 ft)1.98 m2.02 m4.5 cm49% / 51%7.49%
3.00 m (9.84 ft)2.95 m3.05 m10.2 cm49% / 51%4.92%
4.00 m (13.1 ft)3.91 m4.09 m18.2 cm49% / 51%3.66%
5.00 m (16.4 ft)4.86 m5.15 m28.6 cm49% / 51%2.92%
7.00 m (23.0 ft)6.73 m7.29 m56.4 cm48% / 52%2.07%
10.0 m (32.8 ft)9.46 m10.6 m1.16 m47% / 53%1.45%
15.0 m (49.2 ft)13.8 m16.4 m2.62 m46% / 54%0.96%
20.0 m (65.6 ft)17.9 m22.6 m4.69 m44% / 56%0.72%
30.0 m (98.4 ft)25.6 m36.3 m10.8 m41% / 59%0.48%
50.0 m (164 ft)38.8 m70.4 m31.7 m35% / 65%0.29%
100 m (328 ft)63.3 m239 m175 m21% / 79%0.14%

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/1.4#

Focal lengthSubject atTotal DoF
16 mm3.00 m3.86 m
20 mm3.00 m2.08 m
24 mm3.00 m1.37 m
28 mm3.00 m98.0 cm
35 mm3.00 m61.6 cm
40 mm3.00 m46.9 cm
50 mm3.00 m29.8 cm
85 mm3.00 m10.2 cm
105 mm3.00 m6.6 cm

Same lens settings on other formats#

When to use it#

At f/1.4, a 85 mm lens on full frame is a natural choice for portraits and subject isolation. Focused at 3 m you get 10.2 cm of sharp zone; for maximum front-to-back sharpness focus at 172 m and everything from 86.1 m to infinity will be acceptably sharp.

See also the f/1.4 aperture guide.

Frequently asked questions#

What is the depth of field of a 85mm lens at f/1.4?

On full frame, focused at 3 m, it is 10.2 cm; at 1 m it is 1.1 cm.

What is the hyperfocal distance for 85mm f/1.4?

172 m (565 ft) on full frame. Everything from 86.1 m to infinity is acceptably sharp.

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