Depth of field · APS-C

85 mm f/8 depth of field on APS-C

Exactly how much is sharp with a 85 mm lens at f/8 on an APS-C camera, from 30.0 cm to 100 m.

45.2 m
Hyperfocal distance
22.6 m
Sharp from (focused at hyperfocal)
130 mm f/12.3
Full-frame equivalent
19°
Diagonal angle of view

Depth of field by subject distance#

85 mm at f/8 on APS-C (23.5×15.6 mm), circle of confusion 20 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 cm0.3 cm50% / 50%17.87%
50.0 cm (1.64 ft)49.5 cm50.5 cm0.9 cm50% / 50%9.26%
75.0 cm (2.46 ft)73.9 cm76.1 cm2.2 cm49% / 51%5.78%
1.00 m (3.28 ft)98.0 cm1.02 m4.1 cm49% / 51%4.20%
1.50 m (4.92 ft)1.45 m1.55 m9.4 cm48% / 52%2.72%
2.00 m (6.56 ft)1.92 m2.09 m17.0 cm48% / 52%2.01%
3.00 m (9.84 ft)2.82 m3.21 m38.9 cm47% / 53%1.32%
4.00 m (13.1 ft)3.68 m4.38 m69.9 cm46% / 54%0.98%
5.00 m (16.4 ft)4.51 m5.61 m1.10 m45% / 55%0.78%
7.00 m (23.0 ft)6.07 m8.27 m2.20 m42% / 58%0.56%
10.0 m (32.8 ft)8.20 m12.8 m4.61 m39% / 61%0.39%
15.0 m (49.2 ft)11.3 m22.4 m11.1 m33% / 67%0.26%
20.0 m (65.6 ft)13.9 m35.8 m21.9 m28% / 72%0.19%
30.0 m (98.4 ft)18.0 m88.9 m70.8 m17% / 83%0.13%
50.0 m (164 ft)23.7 m∞∞—0.08%
100 m (328 ft)31.1 m∞∞—0.04%

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/1.25.8 cm301 m
f/1.46.8 cm258 m
f/1.88.7 cm201 m
f/29.7 cm181 m
f/2.813.6 cm129 m
f/419.4 cm90.4 m
f/5.627.2 cm64.6 m
f/838.9 cm45.2 m
f/1153.7 cm32.9 m
f/1678.8 cm22.7 m

Other focal lengths at f/8#

Focal lengthSubject atTotal DoF
14 mm3.00 m∞
16 mm3.00 m∞
20 mm3.00 m∞
24 mm3.00 m15.7 m
28 mm3.00 m5.76 m
35 mm3.00 m2.73 m
40 mm3.00 m1.95 m
50 mm3.00 m1.17 m
85 mm3.00 m38.9 cm
105 mm3.00 m25.3 cm
135 mm3.00 m15.1 cm
200 mm10.0 m78.5 cm
300 mm10.0 m34.5 cm
400 mm10.0 m19.2 cm
600 mm10.0 m8.4 cm

Same lens settings on other formats#

When to use it#

At f/8, a 85 mm lens on APS-C is a natural choice for landscapes and architecture where front-to-back sharpness matters. Focused at 3 m you get 38.9 cm of sharp zone; for maximum front-to-back sharpness focus at 45.2 m and everything from 22.6 m to infinity will be acceptably sharp.

See also the f/8 aperture guide.

Frequently asked questions#

What is the depth of field of a 85mm lens at f/8?

On APS-C, focused at 3 m, it is 38.9 cm; at 1 m it is 4.1 cm.

What is the hyperfocal distance for 85mm f/8?

45.2 m (148 ft) on APS-C. Everything from 22.6 m to infinity is acceptably sharp.

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