Specifications#
- Brand
- Tokina
- Model
- AT-X 14-20 F2 PRO DX
- Lens type
- Wide-angle zoom
- Focal length
- 14–20 mm
- Maximum aperture
- f/2
- Image circle
- APS-C (23.5×15.6 mm)
- Projection
- Rectilinear
- Lensfun correction profile
- Yes — distortion/vignetting/TCA
Equivalent focal length on different cameras#
Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).
| Camera format | At 14 mm | At 17 mm | At 20 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| APS-C | 21 mm · 90° | 26 mm · 79° | 30 mm · 70° | f/3.0 |
| APS-C (Canon) | 22 mm · 88° | 27 mm · 77° | 32 mm · 68° | f/3.2 |
| Micro Four Thirds | 28 mm · 75° | 34 mm · 65° | 40 mm · 57° | f/4.0 |
Depth of field & background blur#
Computed on its native APS-C format (CoC 20 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 14 mm f/2 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 14 mm | f/2 | 40.9 cm | 1.88 m | 1.0 km | ∞ | 5.02 m | 0.2% |
| 14 mm | f/4 | 93.1 cm | 8.53 m | ∞ | ∞ | 2.52 m | 0.1% |
| 14 mm | f/8 | 4.14 m | ∞ | ∞ | ∞ | 1.27 m | 0.1% |
| 17 mm | f/2 | 27.1 cm | 1.16 m | 12.4 m | ∞ | 7.41 m | 0.3% |
| 17 mm | f/4 | 57.3 cm | 3.02 m | ∞ | ∞ | 3.71 m | 0.2% |
| 17 mm | f/8 | 1.48 m | ∞ | ∞ | ∞ | 1.86 m | 0.1% |
| 20 mm | f/2 | 19.3 cm | 80.5 cm | 6.38 m | 410 m | 10.2 m | 0.4% |
| 20 mm | f/4 | 39.8 cm | 1.82 m | 190 m | ∞ | 5.13 m | 0.2% |
| 20 mm | f/8 | 89.9 cm | 7.74 m | ∞ | ∞ | 2.58 m | 0.1% |
Handheld & night-sky limits#
NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).
| Body | Min. handheld shutter (longest focal) | 500 rule at 14 mm | NPF at 14 mm, f/2 |
|---|---|---|---|
| APS-C | 1/30 s | 24 s | 13 s |
| APS-C (Canon) | 1/30 s | 22 s | 13 s |
| Micro Four Thirds | 1/40 s | 18 s | 12 s |
Compatible cameras#
Bodies in our database with a native Nikon F and Canon EF mount. Full-frame bodies switch to an APS-C crop with this lens.
- Nikon D6 crop mode
- Nikon D780 crop mode
- Canon EOS-1D X Mark III crop mode
- Nikon D3500 2018
- Nikon D7500 2017
- Nikon D850 crop mode
- Canon EOS 6D Mark II crop mode
- Nikon D5600 2016
- Nikon D3400 2016
- Nikon D500 2016
- Canon EOS 5D Mark IV crop mode
- Canon EOS-1D X Mark II crop mode
- Nikon D5 crop mode
- Nikon D5500 2015
- Nikon D7200 2015
- Canon EOS 5DS crop mode
- Canon EOS 5DS R crop mode
- Nikon D4S crop mode
- Nikon D750 crop mode
- Nikon D810 crop mode
- Nikon D3300 2014
- Nikon D7100 2013
- Nikon D5300 2013
- Nikon D610 crop mode
- Nikon Df crop mode
- Blackmagic Design Pocket Cinema Camera crop mode
- Nikon D3200 2012
- Nikon D4 crop mode
- Nikon D5200 2012
- Nikon D600 crop mode
- Nikon D800 crop mode
- Canon EOS 5D Mark III crop mode
- Canon EOS 6D crop mode
- Canon EOS-1D X crop mode
- Canon EOS-1D C crop mode
- Nikon D5100 2011
- Nikon D7000 2010
- Nikon D3100 2010
- Nikon D3000 2009
- Nikon D300S 2009
Adapt it to other systems#
Similar lenses#
- Nikon Nikkor AF-S 14-24mm f/2.8G ED f/2.8
- Sigma 15-30mm f/3.5-4.5 EX DG Aspherical f/3.5–4.5
- Tamron SP 15-30mm f/2.8 Di VC USD f/2.8
- Tamron SP 15-30mm f/2.8 Di VC USD G2 (A041) f/2.8
- Canon EF 16-35mm f/4L IS USM f/4
- Canon EF 16-35mm f/2.8L II USM f/2.8
- Canon EF 16-35mm f/2.8L III USM f/2.8
- Canon EF 16-35mm f/2.8L USM f/2.8
- Nikon Nikkor AF-S 16-35mm f/4G ED VR f/4
- Tokina AF 16-28mm f/2.8 AT-X Pro SD FX f/2.8
- Nikon Nikkor AF-S 12-24mm f/4G DX IF-ED f/4
- Sigma 12-24mm F4 DG HSM | A f/4
Frequently asked questions#
Is the Tokina AT-X 14-20 F2 PRO DX full frame?
No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.
What is the Tokina AT-X 14-20 F2 PRO DX equivalent to on APS-C?
Its focal length is already the real value for APS-C: 14–20 mm frames like 21–31 mm on full frame.
What is the Tokina AT-X 14-20 F2 PRO DX good for?
As a wide-angle zoom it suits landscapes, architecture, interiors and astrophotography.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources