Specifications#
- Brand
- Tokina
- Model
- ATX-i 11-20mm F2.8 CF
- Lens type
- Wide-angle zoom
- Focal length
- 11–20 mm
- Maximum aperture
- f/2.8
- Image circle
- Full frame (36×24 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 11 mm | At 15 mm | At 20 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| Full frame | 11 mm · 126° | 15 mm · 111° | 20 mm · 94° | f/2.8 |
| APS-C | 16 mm · 104° | 22 mm · 86° | 30 mm · 70° | f/4.2 |
| APS-C (Canon) | 18 mm · 101° | 24 mm · 84° | 32 mm · 68° | f/4.5 |
| Micro Four Thirds | 22 mm · 89° | 30 mm · 72° | 40 mm · 57° | f/5.6 |
Depth of field & background blur#
Computed on its native Full frame format (CoC 30 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/2.8 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 11 mm | f/2.8 | 2.60 m | ∞ | ∞ | ∞ | 1.45 m | 0.1% |
| 11 mm | f/4 | 51.7 m | ∞ | ∞ | ∞ | 1.02 m | 0.0% |
| 11 mm | f/8 | ∞ | ∞ | ∞ | ∞ | 51.5 cm | 0.0% |
| 15 mm | f/2.8 | 85.0 cm | 6.58 m | ∞ | ∞ | 2.69 m | 0.1% |
| 15 mm | f/4 | 1.45 m | ∞ | ∞ | ∞ | 1.89 m | 0.1% |
| 15 mm | f/8 | ∞ | ∞ | ∞ | ∞ | 95.2 cm | 0.0% |
| 20 mm | f/2.8 | 43.0 cm | 2.01 m | ∞ | ∞ | 4.78 m | 0.2% |
| 20 mm | f/4 | 64.4 cm | 3.67 m | ∞ | ∞ | 3.35 m | 0.1% |
| 20 mm | f/8 | 1.80 m | ∞ | ∞ | ∞ | 1.69 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 11 mm | NPF at 11 mm, f/2.8 |
|---|---|---|---|
| Full frame | 1/20 s | 45 s | 25 s |
| APS-C | 1/30 s | 30 s | 20 s |
| APS-C (Canon) | 1/30 s | 28 s | 19 s |
| Micro Four Thirds | 1/40 s | 23 s | 18 s |
Compatible cameras#
Bodies in our database with a native Nikon F and Canon EF mount.
- Nikon D6 2020
- Nikon D780 2020
- Canon EOS-1D X Mark III 2020
- Nikon D3500 2018
- Nikon D7500 2017
- Nikon D850 2017
- Canon EOS 6D Mark II 2017
- Nikon D5600 2016
- Nikon D3400 2016
- Nikon D500 2016
- Canon EOS 5D Mark IV 2016
- Canon EOS-1D X Mark II 2016
- Nikon D5 2016
- Nikon D5500 2015
- Nikon D7200 2015
- Canon EOS 5DS 2015
- Canon EOS 5DS R 2015
- Nikon D4S 2014
- Nikon D750 2014
- Nikon D810 2014
- Nikon D3300 2014
- Nikon D7100 2013
- Nikon D5300 2013
- Nikon D610 2013
- Nikon Df 2013
- Blackmagic Design Pocket Cinema Camera 2013
- Nikon D3200 2012
- Nikon D4 2012
- Nikon D5200 2012
- Nikon D600 2012
- Nikon D800 2012
- Canon EOS 5D Mark III 2012
- Canon EOS 6D 2012
- Canon EOS-1D X 2012
- Canon EOS-1D C 2012
- Nikon D5100 2011
- Nikon D7000 2010
- Nikon D3100 2010
- Nikon D3000 2009
- Nikon D300S 2009
Adapt it to other systems#
Similar lenses#
- Canon EF 11-24mm f/4L USM f/4
- Tamron SP AF 11-18mm f/4.5-5.6 Di-II LD Aspherical (IF) f/4.5–5.6
- Tokina AF 11-16mm f/2.8 AT-X Pro DX f/2.8
- Tokina AF 11-20mm f/2.8 AT-X Pro DX f/2.8
- Tokina AT-X 11-20 F2.8 PRO DX f/2.8
- Tokina AT-X 116 PRO DX II (11-16mm f/2.8) f/2.8
- Tokina atx-i 11-16mm F2.8 CF 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
- Sigma 12-24mm F4.5-5.6 II DG HSM f/4.5–5.6
- Sigma 12-24mm f/4.5-5.6 EX DG Aspherical HSM f/4.5–5.6
- Tokina AF 12-24mm f/4 AT-X Pro DX f/4
Frequently asked questions#
Is the Tokina ATX-i 11-20mm F2.8 CF full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Tokina ATX-i 11-20mm F2.8 CF equivalent to on APS-C?
On a 1.5× APS-C body it frames like 16–30 mm, and like 18–32 mm on Canon APS-C.
What is the Tokina ATX-i 11-20mm F2.8 CF 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