Key numbers
- Mount / system: Third-Party (Various Mounts)
- Sensor: APS-C, 23.5 × 15.6mm
- Focal length: 18–300mm (about 107mm full-frame equivalent, 1.53× crop)
- Aperture: f/3.5–6.3 to f/22
- DoF at 3 m, 70mm, f/4: 2.87–3.14 m (≈ 27 cm deep)
- Hyperfocal distance (70mm, f/8): 32.6 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–∞ |
70 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/4 | 65.2 m | 0.99–1.01 | 1.94–2.06 | 2.87–3.14 | 4.65–5.41 | 8.68–11.8 |
| f/5.6 | 46.6 m | 0.98–1.02 | 1.92–2.09 | 2.82–3.20 | 4.52–5.59 | 8.24–12.7 |
| f/8 | 32.6 m | 0.97–1.03 | 1.89–2.13 | 2.75–3.30 | 4.34–5.89 | 7.67–14.4 |
| f/11 | 23.8 m | 0.96–1.04 | 1.85–2.18 | 2.67–3.42 | 4.14–6.31 | 7.05–17.2 |
| f/16 | 16.4 m | 0.95–1.06 | 1.79–2.27 | 2.54–3.65 | 3.84–7.16 | 6.22–25.5 |
| f/22 | 11.9 m | 0.93–1.08 | 1.72–2.39 | 2.41–3.98 | 3.54–8.53 | 5.45–60.0 |
300 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/6.3 | 760 m | 1.00–1.00 | 2.00–2.00 | 2.99–3.01 | 4.97–5.03 | 9.87–10.1 |
| f/8 | 599 m | 1.00–1.00 | 1.99–2.01 | 2.99–3.01 | 4.96–5.04 | 9.84–10.2 |
| f/11 | 435 m | 1.00–1.00 | 1.99–2.01 | 2.98–3.02 | 4.95–5.05 | 9.78–10.2 |
| f/16 | 299 m | 1.00–1.00 | 1.99–2.01 | 2.97–3.03 | 4.92–5.08 | 9.69–10.3 |
| f/22 | 218 m | 1.00–1.00 | 1.98–2.02 | 2.96–3.04 | 4.89–5.11 | 9.57–10.5 |
FAQ
What is the depth of field of the Tamron 18-300mm F3.5-6.3 Di III-A VC VXD at f/4 and 3 m?
At 70mm, f/4 and focus at 3 m, acceptable sharpness runs from 2.87 to 3.14 m — about 27 cm in total.
What is the hyperfocal distance of the Tamron 18-300mm F3.5-6.3 Di III-A VC VXD?
At 70mm and f/8 on a APS-C sensor the hyperfocal distance is about 32.6 m. Focus there and everything from 16.3 m to infinity is sharp.
How do I get more background blur with the Tamron 18-300mm F3.5-6.3 Di III-A VC VXD?
Open the aperture to f/4, 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.
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