Wide-angle zoom · APS-C

Canon RF-S 10-18mm F4.5-6.3 IS STM

The Canon RF-S 10-18mm F4.5-6.3 IS STM is a APS-C zoom lens (10–18 mm, f/4.5–6.3) for Canon RF. It belongs to the wide-angle zoom class — ideal for landscapes, architecture, interiors and astrophotography.

10–18 mmf/4.5–6.3Canon RF
10–18 mm
Focal length
f/4.5–6.3
Maximum aperture
109°–76°
Diagonal angle of view (APS-C)
APS-C
Designed for
1.8×
Zoom ratio

Specifications#

Brand
Canon
Model
RF-S 10-18mm F4.5-6.3 IS STM
Lens type
Wide-angle zoom
Focal length
10–18 mm
Maximum aperture
f/4.5–6.3
Image circle
APS-C (23.5×15.6 mm)
Mount(s)
Canon RF
Projection
Rectilinear
Stabilisation
Yes (optical)
Autofocus motor
stepping motor (STM)
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 10 mmAt 13 mmAt 18 mmEquiv. aperture (DoF)
APS-C15 mm · 109°20 mm · 95°27 mm · 76°f/6.8
APS-C (Canon)16 mm · 107°21 mm · 92°29 mm · 73°f/7.2
Micro Four Thirds20 mm · 95°26 mm · 80°36 mm · 62°f/9.0

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/5.6 on aps-c.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
10 mmf/4.57.24 m∞∞∞1.15 m0.0%
10 mmf/8∞∞∞∞64.9 cm0.0%
13 mmf/4.51.40 m∞∞∞1.93 m0.1%
13 mmf/811.1 m∞∞∞1.09 m0.0%
18 mmf/4.557.4 cm3.03 m∞∞3.70 m0.2%
18 mmf/81.22 m45.6 m∞∞2.09 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 10 mmNPF at 10 mm, f/4.5
APS-C1/25 s33 s27 s
APS-C (Canon)1/30 s31 s27 s
Micro Four Thirds1/40 s25 s26 s

Compatible cameras#

Bodies in our database with a native Canon RF mount. Full-frame bodies switch to an APS-C crop with this lens.

Adapt it to other systems#

Sony E-mountNikon ZFujifilm X-mountCanon EF-MHasselblad XCDNikon 1 (CX)Pentax Q

Similar lenses#

Frequently asked questions#

Is the Canon RF-S 10-18mm F4.5-6.3 IS STM full frame?

No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.

What is the Canon RF-S 10-18mm F4.5-6.3 IS STM equivalent to on APS-C?

Its focal length is already the real value for APS-C: 10–18 mm frames like 15–28 mm on full frame.

What is the Canon RF-S 10-18mm F4.5-6.3 IS STM 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