Specifications#
- Brand
- Canon
- Model
- EF-S 17-85mm f/4-5.6 IS USM
- Lens type
- Standard zoom
- Focal length
- 17–85 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)
- 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 17 mm | At 38 mm | At 85 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| APS-C | 26 mm · 79° | 57 mm · 41° | 128 mm · 19° | f/6.0 |
| APS-C (Canon) | 27 mm · 77° | 61 mm · 39° | 136 mm · 18° | f/6.4 |
| Micro Four Thirds | 34 mm · 65° | 76 mm · 32° | 170 mm · 15° | 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: 16 mm f/4 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 17 mm | f/4 | 57.3 cm | 3.02 m | ∞ | ∞ | 3.71 m | 0.2% |
| 17 mm | f/8 | 1.48 m | ∞ | ∞ | ∞ | 1.86 m | 0.1% |
| 38 mm | f/4 | 10.5 cm | 43.0 cm | 2.90 m | 15.2 m | 18.5 m | 0.8% |
| 38 mm | f/8 | 21.1 cm | 89.1 cm | 7.56 m | ∞ | 9.27 m | 0.4% |
| 85 mm | f/4 | 2.0 cm | 8.3 cm | 53.4 cm | 2.17 m | 92.4 m | 4.0% |
| 85 mm | f/8 | 4.0 cm | 16.6 cm | 1.08 m | 4.50 m | 46.3 m | 2.0% |
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).
| Body | Min. handheld shutter (longest focal) | 500 rule at 17 mm | NPF at 17 mm, f/4 |
|---|---|---|---|
| APS-C | 1/125 s | 20 s | 15 s |
| APS-C (Canon) | 1/125 s | 18 s | 15 s |
| Micro Four Thirds | 1/160 s | 15 s | 14 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#
- Canon EF-S 17-55mm f/2.8 IS USM f/2.8
- Canon EF-S 18-55mm f/3.5-5.6 f/3.5–5.6
- Canon EF-S 18-55mm f/3.5-5.6 II f/3.5–5.6
- Canon EF-S 18-55mm f/3.5-5.6 III f/3.5–5.6
- Canon EF-S 18-55mm f/3.5-5.6 IS f/3.5–5.6
- Canon EF-S 18-55mm f/3.5-5.6 IS II f/3.5–5.6
- Canon EF-S 18-55mm f/3.5-5.6 IS STM f/3.5–5.6
- Canon EF-S 18-55mm f/4-5.6 IS STM f/4–5.6
- Canon EF-S 15-85mm f/3.5-5.6 IS USM f/3.5–5.6
Frequently asked questions#
Is the Canon EF-S 17-85mm f/4-5.6 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 17-85mm f/4-5.6 IS USM equivalent to on APS-C?
Its focal length is already the real value for APS-C: 17–85 mm frames like 26–130 mm on full frame.
What is the Canon EF-S 17-85mm f/4-5.6 IS USM good for?
As a standard zoom it suits everyday shooting, travel, events and walkaround use.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources