Specifications#
- Brand
- Tokina
- Model
- AF 16-28mm f/2.8 AT-X Pro SD FX
- Lens type
- Wide-angle zoom
- Focal length
- 16–28 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 16 mm | At 21 mm | At 28 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| Full frame | 16 mm · 107° | 21 mm · 92° | 28 mm · 75° | f/2.8 |
| APS-C | 24 mm · 83° | 32 mm · 68° | 42 mm · 53° | f/4.2 |
| APS-C (Canon) | 26 mm · 80° | 34 mm · 65° | 45 mm · 51° | f/4.5 |
| Micro Four Thirds | 32 mm · 68° | 42 mm · 55° | 56 mm · 42° | 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: 16 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 |
|---|---|---|---|---|---|---|---|
| 16 mm | f/2.8 | 72.1 cm | 4.52 m | ∞ | ∞ | 3.06 m | 0.1% |
| 16 mm | f/4 | 1.17 m | 27.5 m | ∞ | ∞ | 2.15 m | 0.1% |
| 16 mm | f/8 | 12.4 m | ∞ | ∞ | ∞ | 1.08 m | 0.0% |
| 21 mm | f/2.8 | 38.6 cm | 1.76 m | 94.3 m | ∞ | 5.27 m | 0.2% |
| 21 mm | f/4 | 57.3 cm | 3.03 m | ∞ | ∞ | 3.70 m | 0.2% |
| 21 mm | f/8 | 1.49 m | ∞ | ∞ | ∞ | 1.86 m | 0.1% |
| 28 mm | f/2.8 | 21.1 cm | 88.5 cm | 7.44 m | ∞ | 9.36 m | 0.4% |
| 28 mm | f/4 | 30.4 cm | 1.33 m | 18.1 m | ∞ | 6.56 m | 0.3% |
| 28 mm | f/8 | 65.3 cm | 3.80 m | ∞ | ∞ | 3.29 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 16 mm | NPF at 16 mm, f/2.8 |
|---|---|---|---|
| Full frame | 1/30 s | 31 s | 17 s |
| APS-C | 1/40 s | 21 s | 13 s |
| APS-C (Canon) | 1/50 s | 20 s | 13 s |
| Micro Four Thirds | 1/60 s | 16 s | 12 s |
Compatible cameras#
Bodies in our database with a native Canon EF and Nikon F mount.
- Nikon D6 2020
- Nikon D780 2020
- Canon EOS-1D X Mark III 2020
- Nikon D3500 2018
- Canon EOS 6D Mark II 2017
- Nikon D7500 2017
- Nikon D850 2017
- Nikon D5600 2016
- Canon EOS 5D Mark IV 2016
- Canon EOS-1D X Mark II 2016
- Nikon D3400 2016
- Nikon D500 2016
- Nikon D5 2016
- Canon EOS 5DS 2015
- Nikon D5500 2015
- Nikon D7200 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
- Canon EOS 5D Mark III 2012
- Canon EOS 6D 2012
- Canon EOS-1D X 2012
- Nikon D3200 2012
- Nikon D4 2012
- Nikon D5200 2012
- Nikon D600 2012
- Nikon D800 2012
- Canon EOS-1D C 2012
- Nikon D5100 2011
- Nikon D7000 2010
- Nikon D3100 2010
- Canon EOS-1D Mark IV 2009
- Nikon D3000 2009
Adapt it to other systems#
Similar lenses#
- 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
- Canon EF 17-35mm f/2.8L USM f/2.8
- Canon EF 17-40mm f/4L USM f/4
- Nikon Nikkor AF-S 17-35mm f/2.8D IF-ED f/2.8
- Sigma 17-35mm F2.8-4 EX DG Aspherical HSM f/2.8–4
- Sigma 17-35mm f/2.8-4 EX DG f/2.8–4
- Tamron 17-35mm f/2.8-4 Di OSD (A037) f/2.8–4
- Tamron SP AF 17-35mm f/2.8-4 Di LD Aspherical (IF) f/2.8–4
Frequently asked questions#
Is the Tokina AF 16-28mm f/2.8 AT-X Pro SD FX full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Tokina AF 16-28mm f/2.8 AT-X Pro SD FX equivalent to on APS-C?
On a 1.5× APS-C body it frames like 24–42 mm, and like 26–45 mm on Canon APS-C.
What is the Tokina AF 16-28mm f/2.8 AT-X Pro SD FX 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