57.1 m
Hyperfocal distance
28.5 m
Sharp from (focused at hyperfocal)
207 mm f/24.5
Full-frame equivalent
12°
Diagonal angle of view
Depth of field by subject distance#
135 mm at f/16 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 | 0.2 cm | 50% / 50% | 29.38% |
| 50.0 cm (1.64 ft) | 49.7 cm | 50.3 cm | 0.6 cm | 50% / 50% | 13.28% |
| 75.0 cm (2.46 ft) | 74.2 cm | 75.8 cm | 1.6 cm | 49% / 51% | 7.88% |
| 1.00 m (3.28 ft) | 98.5 cm | 1.02 m | 3.0 cm | 49% / 51% | 5.60% |
| 1.50 m (4.92 ft) | 1.46 m | 1.54 m | 7.2 cm | 49% / 51% | 3.55% |
| 2.00 m (6.56 ft) | 1.94 m | 2.07 m | 13.1 cm | 48% / 52% | 2.60% |
| 3.00 m (9.84 ft) | 2.86 m | 3.16 m | 30.3 cm | 47% / 53% | 1.69% |
| 4.00 m (13.1 ft) | 3.75 m | 4.29 m | 54.5 cm | 47% / 53% | 1.25% |
| 5.00 m (16.4 ft) | 4.61 m | 5.47 m | 86.0 cm | 46% / 54% | 1.00% |
| 7.00 m (23.0 ft) | 6.25 m | 7.96 m | 1.71 m | 44% / 56% | 0.71% |
| 10.0 m (32.8 ft) | 8.52 m | 12.1 m | 3.57 m | 41% / 59% | 0.49% |
| 15.0 m (49.2 ft) | 11.9 m | 20.3 m | 8.40 m | 37% / 63% | 0.33% |
| 20.0 m (65.6 ft) | 14.8 m | 30.7 m | 15.9 m | 33% / 67% | 0.24% |
| 30.0 m (98.4 ft) | 19.7 m | 63.1 m | 43.4 m | 24% / 76% | 0.16% |
| 50.0 m (164 ft) | 26.7 m | 402 m | 375 m | 6% / 94% | 0.10% |
| 100 m (328 ft) | 36.3 m | ∞ | ∞ | — | 0.05% |
Try other settings#
Near limit—
Far limit—
Depth of field—
Hyperfocal distance—
In front / behind—
135 mm at other apertures (subject at 3 m)#
Other focal lengths at f/16#
Same lens settings on other formats#
When to use it#
At f/16, a 135 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 30.3 cm of sharp zone; for maximum front-to-back sharpness focus at 57.1 m and everything from 28.5 m to infinity will be acceptably sharp.
See also the f/16 aperture guide.
Frequently asked questions#
What is the depth of field of a 135mm lens at f/16?
On APS-C, focused at 3 m, it is 30.3 cm; at 1 m it is 3.0 cm.
What is the hyperfocal distance for 135mm f/16?
57.1 m (187 ft) on APS-C. Everything from 28.5 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources