Telephoto zoom · APS-C

Canon EF-S 55-250mm f/4-5.6 IS

The Canon EF-S 55-250mm f/4-5.6 IS is a APS-C zoom lens (55–250 mm, f/4–5.6) for Canon EF-S. It belongs to the telephoto zoom class — ideal for sport, wildlife, events and compressed landscapes.

55–250 mmf/4–5.6Canon EF-S
55–250 mm
Focal length
f/4–5.6
Maximum aperture
29°–6°
Diagonal angle of view (APS-C)
APS-C
Designed for
4.5×
Zoom ratio

Specifications#

Brand
Canon
Model
EF-S 55-250mm f/4-5.6 IS
Lens type
Telephoto zoom
Focal length
55–250 mm
Maximum aperture
f/4–5.6
Image circle
APS-C (23.5×15.6 mm)
Mount(s)
Canon EF-S
Projection
Rectilinear
Stabilisation
Yes (optical)
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 55 mmAt 117 mmAt 250 mmEquiv. aperture (DoF)
APS-C82 mm · 29°176 mm · 14°375 mm · 6°f/6.0
APS-C (Canon)88 mm · 27°187 mm · 13°400 mm · 6°f/6.4
Micro Four Thirds110 mm · 22°234 mm · 11°500 mm · 5°f/8.0

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: 50 mm f/4 on aps-c.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
55 mmf/44.9 cm20.2 cm1.30 m5.51 m38.7 m1.7%
55 mmf/89.8 cm40.7 cm2.74 m14.0 m19.4 m0.8%
117 mmf/41.0 cm4.3 cm27.9 cm1.13 m175 m7.7%
117 mmf/82.0 cm8.6 cm56.0 cm2.29 m87.6 m3.9%
250 mmf/40.2 cm0.9 cm5.9 cm24.4 cm799 m38.0%
250 mmf/80.4 cm1.8 cm11.9 cm48.8 cm400 m19.0%

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 55 mmNPF at 55 mm, f/4
APS-C1/400 s6 s5 s
APS-C (Canon)1/400 s6 s5 s
Micro Four Thirds1/500 s5 s4 s

Adapt it to other systems#

Frequently asked questions#

Is the Canon EF-S 55-250mm f/4-5.6 IS 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 EF-S 55-250mm f/4-5.6 IS equivalent to on APS-C?

Its focal length is already the real value for APS-C: 55–250 mm frames like 84–383 mm on full frame.

What is the Canon EF-S 55-250mm f/4-5.6 IS good for?

As a telephoto zoom it suits sport, wildlife, events and compressed landscapes.

Sources & licences#

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

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