98.5 m
Hyperfocal distance
49.3 m
Sharp from (focused at hyperfocal)
161 mm f/8.6
Full-frame equivalent
15°
Diagonal angle of view
Depth of field by subject distance#
105 mm at f/5.6 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 distance | Near limit | Far limit | Total DoF | Front / behind | Background blur |
|---|---|---|---|---|---|
| 30.0 cm (0.98 ft) | 29.9 cm | 30.1 cm | 0.1 cm | 50% / 50% | 42.96% |
| 50.0 cm (1.64 ft) | 49.8 cm | 50.2 cm | 0.4 cm | 50% / 50% | 21.21% |
| 75.0 cm (2.46 ft) | 74.5 cm | 75.5 cm | 1.0 cm | 50% / 50% | 12.99% |
| 1.00 m (3.28 ft) | 99.1 cm | 1.01 m | 1.8 cm | 50% / 50% | 9.36% |
| 1.50 m (4.92 ft) | 1.48 m | 1.52 m | 4.3 cm | 49% / 51% | 6.01% |
| 2.00 m (6.56 ft) | 1.96 m | 2.04 m | 7.7 cm | 49% / 51% | 4.42% |
| 3.00 m (9.84 ft) | 2.91 m | 3.09 m | 17.7 cm | 49% / 51% | 2.89% |
| 4.00 m (13.1 ft) | 3.85 m | 4.16 m | 31.7 cm | 48% / 52% | 2.15% |
| 5.00 m (16.4 ft) | 4.76 m | 5.26 m | 49.9 cm | 48% / 52% | 1.71% |
| 7.00 m (23.0 ft) | 6.54 m | 7.53 m | 98.5 cm | 46% / 54% | 1.22% |
| 10.0 m (32.8 ft) | 9.09 m | 11.1 m | 2.03 m | 45% / 55% | 0.85% |
| 15.0 m (49.2 ft) | 13.0 m | 17.7 m | 4.65 m | 42% / 58% | 0.56% |
| 20.0 m (65.6 ft) | 16.6 m | 25.1 m | 8.43 m | 40% / 60% | 0.42% |
| 30.0 m (98.4 ft) | 23.0 m | 43.1 m | 20.1 m | 35% / 65% | 0.28% |
| 50.0 m (164 ft) | 33.2 m | 101 m | 68.2 m | 25% / 75% | 0.17% |
| 100 m (328 ft) | 49.6 m | ∞ | ∞ | — | 0.08% |
Try other settings#
Near limit—
Far limit—
Depth of field—
Hyperfocal distance—
In front / behind—
105 mm at other apertures (subject at 3 m)#
Other focal lengths at f/5.6#
| Focal length | Subject at | Total DoF |
|---|---|---|
| 14 mm | 3.00 m | ∞ |
| 16 mm | 3.00 m | ∞ |
| 20 mm | 3.00 m | 16.5 m |
| 24 mm | 3.00 m | 5.22 m |
| 28 mm | 3.00 m | 3.11 m |
| 35 mm | 3.00 m | 1.76 m |
| 40 mm | 3.00 m | 1.30 m |
| 50 mm | 3.00 m | 80.7 cm |
| 85 mm | 3.00 m | 27.2 cm |
| 105 mm | 3.00 m | 17.7 cm |
| 135 mm | 3.00 m | 10.6 cm |
| 200 mm | 10.0 m | 54.9 cm |
| 300 mm | 10.0 m | 24.1 cm |
| 400 mm | 10.0 m | 13.4 cm |
| 600 mm | 10.0 m | 5.8 cm |
Same lens settings on other formats#
When to use it#
At f/5.6, a 105 mm lens on APS-C is a natural choice for general photography. Focused at 3 m you get 17.7 cm of sharp zone; for maximum front-to-back sharpness focus at 98.5 m and everything from 49.3 m to infinity will be acceptably sharp.
See also the f/5.6 aperture guide.
Frequently asked questions#
What is the depth of field of a 105mm lens at f/5.6?
On APS-C, focused at 3 m, it is 17.7 cm; at 1 m it is 1.8 cm.
What is the hyperfocal distance for 105mm f/5.6?
98.5 m (323 ft) on APS-C. Everything from 49.3 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources