Wide-angle zoom · APS-C

Tokina AT-X 14-20 F2 PRO DX

The Tokina AT-X 14-20 F2 PRO DX is a APS-C zoom lens (14–20 mm, f/2) for Nikon F and Canon EF. It belongs to the wide-angle zoom class — ideal for landscapes, architecture, interiors and astrophotography.

14–20 mmf/2Nikon FCanon EF
14–20 mm
Focal length
f/2
Maximum aperture
90°–70°
Diagonal angle of view (APS-C)
APS-C
Designed for
1.4×
Zoom ratio

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)
Mount(s)
Nikon F, Canon EF
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 formatAt 14 mmAt 17 mmAt 20 mmEquiv. aperture (DoF)
APS-C21 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 Thirds28 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.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
14 mmf/240.9 cm1.88 m1.0 km∞5.02 m0.2%
14 mmf/493.1 cm8.53 m∞∞2.52 m0.1%
14 mmf/84.14 m∞∞∞1.27 m0.1%
17 mmf/227.1 cm1.16 m12.4 m∞7.41 m0.3%
17 mmf/457.3 cm3.02 m∞∞3.71 m0.2%
17 mmf/81.48 m∞∞∞1.86 m0.1%
20 mmf/219.3 cm80.5 cm6.38 m410 m10.2 m0.4%
20 mmf/439.8 cm1.82 m190 m∞5.13 m0.2%
20 mmf/889.9 cm7.74 m∞∞2.58 m0.1%

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).

BodyMin. handheld shutter (longest focal)500 rule at 14 mmNPF at 14 mm, f/2
APS-C1/30 s24 s13 s
APS-C (Canon)1/30 s22 s13 s
Micro Four Thirds1/40 s18 s12 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.

Adapt it to other systems#

Sony E-mountCanon RFNikon ZFujifilm X-mountMicro Four ThirdsL-MountCanon EF-MFujifilm G-mountHasselblad XCDNikon 1 (CX)Pentax QSamsung NXCanon EFPentax K

Similar lenses#

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#

Last updated October 03, 2026 · How we calculate · Sources

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