Key numbers
- Mount / system: Sony E (APS-C)
- Sensor: APS-C, 23.5 × 15.6mm
- Focal length: 18–135mm (about 77mm full-frame equivalent, 1.53× crop)
- Aperture: f/3.5–5.6 to f/22
- DoF at 3 m, 50mm, f/4.1: 2.75–3.30 m (≈ 55 cm deep)
- Hyperfocal distance (50mm, f/8): 16.7 m
Depth of field table
Distances are measured from the sensor plane. Each cell shows the near and far limit of acceptable sharpness in metres (∞ = to infinity). Circle of confusion = sensor diagonal / 1500.
18 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/3.5 | 4.94 m | 0.83–1.25 | 1.43–3.34 | 1.87–7.57 | 2.49–∞ | 3.31–∞ |
| f/4 | 4.33 m | 0.81–1.29 | 1.37–3.69 | 1.78–9.66 | 2.32–∞ | 3.02–∞ |
| f/5.6 | 3.09 m | 0.76–1.46 | 1.22–5.56 | 1.53–82.3 | 1.92–∞ | 2.37–∞ |
| f/8 | 2.17 m | 0.69–1.83 | 1.05–22.9 | 1.26–∞ | 1.52–∞ | 1.79–∞ |
| f/11 | 1.58 m | 0.62–2.63 | 0.89–∞ | 1.04–∞ | 1.21–∞ | 1.37–∞ |
| f/16 | 1.09 m | 0.53–9.70 | 0.71–∞ | 0.81–∞ | 0.90–∞ | 0.99–∞ |
| f/22 | 0.80 m | 0.45–∞ | 0.58–∞ | 0.64–∞ | 0.69–∞ | 0.74–∞ |
50 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/4.1 | 32.5 m | 0.97–1.03 | 1.89–2.13 | 2.75–3.30 | 4.34–5.90 | 7.65–14.4 |
| f/5.6 | 23.8 m | 0.96–1.04 | 1.85–2.18 | 2.67–3.42 | 4.14–6.31 | 7.05–17.2 |
| f/8 | 16.7 m | 0.95–1.06 | 1.79–2.26 | 2.55–3.65 | 3.86–7.11 | 6.26–24.8 |
| f/11 | 12.1 m | 0.93–1.08 | 1.72–2.38 | 2.41–3.96 | 3.55–8.44 | 5.49–55.5 |
| f/16 | 8.36 m | 0.90–1.13 | 1.62–2.61 | 2.22–4.64 | 3.14–12.3 | 4.57–∞ |
| f/22 | 6.09 m | 0.87–1.18 | 1.52–2.94 | 2.02–5.82 | 2.76–26.7 | 3.80–∞ |
135 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/5.6 | 173 m | 1.00–1.01 | 1.98–2.02 | 2.95–3.05 | 4.86–5.14 | 9.46–10.6 |
| f/8 | 121 m | 0.99–1.01 | 1.97–2.03 | 2.93–3.07 | 4.81–5.21 | 9.25–10.9 |
| f/11 | 88.2 m | 0.99–1.01 | 1.96–2.04 | 2.91–3.10 | 4.74–5.29 | 8.99–11.3 |
| f/16 | 60.7 m | 0.99–1.01 | 1.94–2.06 | 2.86–3.15 | 4.63–5.44 | 8.60–11.9 |
| f/22 | 44.2 m | 0.98–1.02 | 1.92–2.09 | 2.82–3.21 | 4.50–5.62 | 8.17–12.9 |
FAQ
What is the depth of field of the Sony E 18-135mm F3.5-5.6 OSS at f/4.1 and 3 m?
At 50mm, f/4.1 and focus at 3 m, acceptable sharpness runs from 2.75 to 3.30 m — about 55 cm in total.
What is the hyperfocal distance of the Sony E 18-135mm F3.5-5.6 OSS?
At 50mm and f/8 on a APS-C sensor the hyperfocal distance is about 16.7 m. Focus there and everything from 8.33 m to infinity is sharp.
How do I get more background blur with the Sony E 18-135mm F3.5-5.6 OSS?
Open the aperture to f/4.1, move closer to your subject and increase the distance between subject and background, and zoom in to the long end. You can check the result in the calculator above.