Wide-angle prime · Full frame

Canon EF 24mm f/2.8 IS USM

The Canon EF 24mm f/2.8 IS USM is a full frame prime lens (24 mm, f/2.8) for Canon EF. It belongs to the wide-angle prime class — ideal for street, environmental portraits, landscapes and astro.

24 mmf/2.8Canon EF
24 mm
Focal length
f/2.8
Maximum aperture
84°
Diagonal angle of view (Full frame)
Full frame
Designed for

Specifications#

Brand
Canon
Model
EF 24mm f/2.8 IS USM
Lens type
Wide-angle prime
Focal length
24 mm
Maximum aperture
f/2.8
Image circle
Full frame (36×24 mm)
Mount(s)
Canon EF
Projection
Rectilinear
Stabilisation
Yes (optical)
Autofocus motor
ultrasonic (USM)
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 24 mmEquiv. aperture (DoF)
Full frame24 mm · 84°f/2.8
APS-C36 mm · 61°f/4.2
APS-C (Canon)38 mm · 58°f/4.5
Micro Four Thirds48 mm · 49°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: 24 mm f/2.8 on full frame.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
24 mmf/2.829.1 cm1.26 m15.3 m∞6.88 m0.3%
24 mmf/442.4 cm1.98 m∞∞4.82 m0.2%
24 mmf/897.4 cm10.2 m∞∞2.42 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 24 mmNPF at 24 mm, f/2.8
Full frame1/25 s21 s12 s
APS-C1/40 s14 s9 s
APS-C (Canon)1/40 s13 s9 s
Micro Four Thirds1/50 s10 s8 s

Adapt it to other systems#

Frequently asked questions#

Is the Canon EF 24mm f/2.8 IS USM full frame?

Yes — it covers the full 36 × 24 mm frame.

What is the Canon EF 24mm f/2.8 IS USM equivalent to on APS-C?

On a 1.5× APS-C body it frames like 36 mm, and like 38 mm on Canon APS-C.

What is the Canon EF 24mm f/2.8 IS USM good for?

As a wide-angle prime it suits street, environmental portraits, landscapes and astro.

Sources & licences#

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