Specifications#
- Brand
- Canon
- Model
- EF-S 18-135mm f/3.5-5.6 IS USM
- Lens type
- Superzoom
- Focal length
- 18–135 mm
- Maximum aperture
- f/3.5–5.6
- Image circle
- APS-C (23.5×15.6 mm)
- Mount(s)
- Canon EF-S
- 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 format | At 18 mm | At 49 mm | At 135 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| APS-C | 27 mm · 76° | 74 mm · 32° | 202 mm · 12° | f/5.2 |
| APS-C (Canon) | 29 mm · 73° | 78 mm · 31° | 216 mm · 11° | f/5.6 |
| Micro Four Thirds | 36 mm · 62° | 98 mm · 25° | 270 mm · 9° | f/7.0 |
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: 20 mm f/4 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 18 mm | f/3.5 | 43.4 cm | 2.03 m | ∞ | ∞ | 4.75 m | 0.2% |
| 18 mm | f/4 | 50.2 cm | 2.48 m | ∞ | ∞ | 4.16 m | 0.2% |
| 18 mm | f/8 | 1.22 m | 45.6 m | ∞ | ∞ | 2.09 m | 0.1% |
| 49 mm | f/3.5 | 5.4 cm | 22.3 cm | 1.44 m | 6.17 m | 35.1 m | 1.5% |
| 49 mm | f/4 | 6.2 cm | 25.5 cm | 1.66 m | 7.25 m | 30.7 m | 1.3% |
| 49 mm | f/8 | 12.4 cm | 51.7 cm | 3.60 m | 22.4 m | 15.4 m | 0.7% |
| 135 mm | f/3.5 | 0.6 cm | 2.8 cm | 18.3 cm | 74.2 cm | 266 m | 11.9% |
| 135 mm | f/4 | 0.7 cm | 3.2 cm | 20.9 cm | 84.8 cm | 233 m | 10.4% |
| 135 mm | f/8 | 1.5 cm | 6.4 cm | 41.8 cm | 1.71 m | 117 m | 5.2% |
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 18 mm | NPF at 18 mm, f/3.5 |
|---|---|---|---|
| APS-C | 1/200 s | 19 s | 13 s |
| APS-C (Canon) | 1/200 s | 17 s | 13 s |
| Micro Four Thirds | 1/250 s | 14 s | 12 s |
Compatible cameras#
Bodies in our database with a native Canon EF-S mount. Full-frame bodies switch to an APS-C crop with this lens.
- Canon EOS 850D 2020
- Canon EOS 250D 2019
- Canon EOS 90D 2019
- Canon EOS 2000D 2018
- Canon EOS 4000D 2018
- Canon EOS 200D 2017
- Canon EOS 77D 2017
- Canon EOS 800D 2017
- Canon EOS 1300D 2016
- Canon EOS 80D 2016
- Canon EOS 750D 2015
- Canon EOS 1200D 2014
- Canon EOS 7D Mark II 2014
- Canon EOS 100D 2013
- Canon EOS 700D 2013
- Canon EOS 70D 2013
- Canon EOS 650D 2012
- Canon EOS 600D 2011
- Canon EOS 550D 2010
- Canon EOS 60D 2010
- Canon EOS 500D 2009
- Canon EOS 7D 2009
- Canon EOS 1000D 2008
- Canon EOS 450D 2008
- Canon EOS 50D 2008
- Canon EOS 40D 2007
- Canon EOS 400D 2006
- Canon EOS 30D 2006
- Canon EOS 350D 2005
- Canon EOS 20D 2004
- Canon EOS 300D 2003
- Canon EOS 10D 2003
- Canon EOS D60 2002
- Canon EOS D30 2000
- Canon EOS 1100D
- Canon EOS 760D
- Canon EOS 8000D
- Canon EOS Digital Rebel XSi
- Canon EOS Kiss Digital F
- Canon EOS Kiss Digital X
Adapt it to other systems#
Similar lenses#
Frequently asked questions#
Is the Canon EF-S 18-135mm f/3.5-5.6 IS USM 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 18-135mm f/3.5-5.6 IS USM equivalent to on APS-C?
Its focal length is already the real value for APS-C: 18–135 mm frames like 28–207 mm on full frame.
What is the Canon EF-S 18-135mm f/3.5-5.6 IS USM good for?
As a superzoom it suits travel photography with one lens from wide to telephoto.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources