Specifications#
- Brand
- Tokina
- Model
- AF 17mm f/3.5 AT-X Pro
- Lens type
- Ultra-wide prime
- Focal length
- 17 mm
- Maximum aperture
- f/3.5
- 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 17 mm | Equiv. aperture (DoF) |
|---|---|---|
| Full frame | 17 mm · 104° | f/3.5 |
| APS-C | 26 mm · 79° | f/5.2 |
| APS-C (Canon) | 27 mm · 77° | f/5.6 |
| Micro Four Thirds | 34 mm · 65° | f/7.0 |
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/4 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 17 mm | f/3.5 | 81.9 cm | 5.99 m | ∞ | ∞ | 2.77 m | 0.1% |
| 17 mm | f/4 | 98.0 cm | 10.2 m | ∞ | ∞ | 2.43 m | 0.1% |
| 17 mm | f/8 | 4.89 m | ∞ | ∞ | ∞ | 1.22 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 17 mm | NPF at 17 mm, f/3.5 |
|---|---|---|---|
| Full frame | 1/15 s | 29 s | 18 s |
| APS-C | 1/25 s | 20 s | 14 s |
| APS-C (Canon) | 1/25 s | 18 s | 14 s |
| Micro Four Thirds | 1/30 s | 15 s | 13 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#
- Tokina 17mm f/3.5 AT-X 17 AF Pro f/3.5
- Tokina 17mm f/3.5 RMC II f/3.5
- Samyang 16mm f/2.0 ED AS UMC CS f/2
- Nikon Nikkor AI 15mm f/3.5 f/3.5
- Samyang 20mm f/1.8 ED AS UMC f/1.8
- Canon EF 20mm f/2.8 USM f/2.8
- Nikon Nikkor AF 20mm f/2.8D f/2.8
- Nikon Nikkor AF-S 20mm f/1.8G ED f/1.8
- Nikon Nikkor AI 20mm f/3.5 f/3.5
- Nikon Nikkor AI-S 20mm f/2.8 f/2.8
- Sigma 20mm f/1.4 DG HSM | A f/1.4
- Sigma 20mm f/1.8 EX DG f/1.8
Frequently asked questions#
Is the Tokina AF 17mm f/3.5 AT-X Pro full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Tokina AF 17mm f/3.5 AT-X Pro equivalent to on APS-C?
On a 1.5× APS-C body it frames like 26 mm, and like 27 mm on Canon APS-C.
What is the Tokina AF 17mm f/3.5 AT-X Pro good for?
As a ultra-wide prime it suits astrophotography, landscapes and dramatic perspectives.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources